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1 | =head1 NAME |
2 | |
3 | perldiag - various Perl diagnostics |
4 | |
5 | =head1 DESCRIPTION |
6 | |
7 | These messages are classified as follows (listed in increasing order of |
8 | desperation): |
9 | |
10 | (W) A warning (optional). |
11 | (D) A deprecation (optional). |
12 | (S) A severe warning (mandatory). |
13 | (F) A fatal error (trappable). |
14 | (P) An internal error you should never see (trappable). |
15 | (X) A very fatal error (non-trappable). |
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16 | (A) An alien error message (not generated by Perl). |
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17 | |
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18 | Optional warnings are enabled by using the B<-w> switch. Warnings may |
19 | be captured by setting C<$^Q> to a reference to a routine that will be |
20 | called on each warning instead of printing it. See L<perlvar>. |
21 | Trappable errors may be trapped using the eval operator. See |
22 | L<perlfunc/eval>. |
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23 | |
24 | Some of these messages are generic. Spots that vary are denoted with a %s, |
25 | just as in a printf format. Note that some message start with a %s! |
26 | The symbols C<"%-?@> sort before the letters, while C<[> and C<\> sort after. |
27 | |
28 | =over 4 |
29 | |
30 | =item "my" variable %s can't be in a package |
31 | |
32 | (F) Lexically scoped variables aren't in a package, so it doesn't make sense |
33 | to try to declare one with a package qualifier on the front. Use local() |
34 | if you want to localize a package variable. |
35 | |
36 | =item "no" not allowed in expression |
37 | |
38 | (F) The "no" keyword is recognized and executed at compile time, and returns |
39 | no useful value. See L<perlmod>. |
40 | |
41 | =item "use" not allowed in expression |
42 | |
43 | (F) The "use" keyword is recognized and executed at compile time, and returns |
44 | no useful value. See L<perlmod>. |
45 | |
46 | =item % may only be used in unpack |
47 | |
48 | (F) You can't pack a string by supplying a checksum, since the |
49 | checksumming process loses information, and you can't go the other |
50 | way. See L<perlfunc/unpack>. |
51 | |
52 | =item %s (...) interpreted as function |
53 | |
54 | (W) You've run afoul of the rule that says that any list operator followed |
55 | by parentheses turns into a function, with all the list operators arguments |
56 | found inside the parens. See L<perlop/Terms and List Operators (Leftward)>. |
57 | |
58 | =item %s argument is not a HASH element |
59 | |
60 | (F) The argument to delete() or exists() must be a hash element, such as |
61 | |
62 | $foo{$bar} |
63 | $ref->[12]->{"susie"} |
64 | |
65 | =item %s did not return a true value |
66 | |
67 | (F) A required (or used) file must return a true value to indicate that |
68 | it compiled correctly and ran its initialization code correctly. It's |
69 | traditional to end such a file with a "1;", though any true value would |
70 | do. See L<perlfunc/require>. |
71 | |
72 | =item %s found where operator expected |
73 | |
74 | (S) The Perl lexer knows whether to expect a term or an operator. If it |
75 | sees what it knows to be a term when it was expecting to see an operator, |
76 | it gives you this warning. Usually it indicates that an operator or |
77 | delimiter was omitted, such as a semicolon. |
78 | |
79 | =item %s had compilation errors. |
80 | |
81 | (F) The final summary message when a C<perl -c> fails. |
82 | |
83 | =item %s has too many errors. |
84 | |
85 | (F) The parser has given up trying to parse the program after 10 errors. |
86 | Further error messages would likely be uninformative. |
87 | |
88 | =item %s matches null string many times |
89 | |
90 | (W) The pattern you've specified would be an infinite loop if the |
91 | regular expression engine didn't specifically check for that. See L<perlre>. |
92 | |
93 | =item %s never introduced |
94 | |
95 | (S) The symbol in question was declared but somehow went out of scope |
96 | before it could possibly have been used. |
97 | |
98 | =item %s syntax OK |
99 | |
100 | (F) The final summary message when a C<perl -c> succeeds. |
101 | |
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102 | =item %s: Command not found. |
103 | |
104 | (A) You've accidentally run your script through B<csh> instead |
105 | of Perl. Check the <#!> line, or manually feed your script |
106 | into Perl yourself. |
107 | |
108 | =item %s: Expression syntax. |
109 | |
110 | (A) You've accidentally run your script through B<csh> instead |
111 | of Perl. Check the <#!> line, or manually feed your script |
112 | into Perl yourself. |
113 | |
114 | =item %s: Undefined variable. |
115 | |
116 | (A) You've accidentally run your script through B<csh> instead |
117 | of Perl. Check the <#!> line, or manually feed your script |
118 | into Perl yourself. |
119 | |
120 | =item %s: not found |
121 | |
122 | (A) You've accidentally run your script through the Bourne shell |
123 | instead of Perl. Check the <#!> line, or manually feed your script |
124 | into Perl yourself. |
125 | |
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126 | =item B<-P> not allowed for setuid/setgid script |
127 | |
128 | (F) The script would have to be opened by the C preprocessor by name, |
129 | which provides a race condition that breaks security. |
130 | |
131 | =item C<-T> and C<-B> not implemented on filehandles |
132 | |
133 | (F) Perl can't peek at the stdio buffer of filehandles when it doesn't |
134 | know about your kind of stdio. You'll have to use a filename instead. |
135 | |
136 | =item ?+* follows nothing in regexp |
137 | |
138 | (F) You started a regular expression with a quantifier. Backslash it |
139 | if you meant it literally. See L<perlre>. |
140 | |
141 | =item @ outside of string |
142 | |
143 | (F) You had a pack template that specified an absolution position outside |
144 | the string being unpacked. See L<perlfunc/pack>. |
145 | |
146 | =item accept() on closed fd |
147 | |
148 | (W) You tried to do an accept on a closed socket. Did you forget to check |
149 | the return value of your socket() call? See L<perlfunc/accept>. |
150 | |
151 | =item Allocation too large: %lx |
152 | |
153 | (F) You can't allocate more than 64K on an MSDOS machine. |
154 | |
155 | =item Arg too short for msgsnd |
156 | |
157 | (F) msgsnd() requires a string at least as long as sizeof(long). |
158 | |
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159 | =item Ambiguous use of %s resolved as %s |
160 | |
161 | (W)(S) You said something that may not be interpreted the way |
162 | you thought. Normally it's pretty easy to disambiguate it by supplying |
163 | a missing quote, operator, paren pair or declaration. |
164 | |
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165 | =item Args must match #! line |
166 | |
167 | (F) The setuid emulator requires that the arguments Perl was invoked |
168 | with match the arguments specified on the #! line. |
169 | |
170 | =item Argument "%s" isn't numeric |
171 | |
172 | (W) The indicated string was fed as an argument to an operator that |
173 | expected a numeric value instead. If you're fortunate the message |
174 | will identify which operator was so unfortunate. |
175 | |
176 | =item Array @%s missing the @ in argument %d of %s() |
177 | |
178 | (D) Really old Perl let you omit the @ on array names in some spots. This |
179 | is now heavily deprecated. |
180 | |
181 | =item assertion botched: %s |
182 | |
183 | (P) The malloc package that comes with Perl had an internal failure. |
184 | |
185 | =item Assertion failed: file "%s" |
186 | |
187 | (P) A general assertion failed. The file in question must be examined. |
188 | |
189 | =item Assignment to both a list and a scalar |
190 | |
191 | (F) If you assign to a conditional operator, the 2nd and 3rd arguments |
192 | must either both be scalars or both be lists. Otherwise Perl won't |
193 | know which context to supply to the right side. |
194 | |
195 | =item Attempt to free non-arena SV: 0x%lx |
196 | |
197 | (P) All SV objects are supposed to be allocated from arenas that will |
198 | be garbage collected on exit. An SV was discovered to be outside any |
199 | of those arenas. |
200 | |
201 | =item Attempt to free temp prematurely |
202 | |
203 | (W) Mortalized values are supposed to be freed by the free_tmps() |
204 | routine. This indicates that something else is freeing the SV before |
205 | the free_tmps() routine gets a chance, which means that the free_tmps() |
206 | routine will be freeing an unreferenced scalar when it does try to free |
207 | it. |
208 | |
209 | =item Attempt to free unreferenced glob pointers |
210 | |
211 | (P) The reference counts got screwed up on symbol aliases. |
212 | |
213 | =item Attempt to free unreferenced scalar |
214 | |
215 | (W) Perl went to decrement the reference count of a scalar to see if it |
216 | would go to 0, and discovered that it had already gone to 0 earlier, |
217 | and should have been freed, and in fact, probably was freed. This |
218 | could indicate that SvREFCNT_dec() was called too many times, or that |
219 | SvREFCNT_inc() was called too few times, or that the SV was mortalized |
220 | when it shouldn't have been, or that memory has been corrupted. |
221 | |
222 | =item Bad arg length for %s, is %d, should be %d |
223 | |
224 | (F) You passed a buffer of the wrong size to one of msgctl(), semctl() or |
225 | shmctl(). In C parlance, the correct sized are, respectively, |
226 | S<sizeof(struct msqid_ds *)>, S<sizeof(struct semid_ds *)> and |
227 | S<sizeof(struct shmid_ds *)>. |
228 | |
229 | =item Bad associative array |
230 | |
231 | (P) One of the internal hash routines was passed a null HV pointer. |
232 | |
233 | =item Bad filehandle: %s |
234 | |
235 | (F) A symbol was passed to something wanting a filehandle, but the symbol |
236 | has no filehandle associated with it. Perhaps you didn't do an open(), or |
237 | did it in another package. |
238 | |
239 | =item Bad free() ignored |
240 | |
241 | (S) An internal routine called free() on something that had never been |
242 | malloc()ed in the first place. |
243 | |
244 | =item Bad name after %s:: |
245 | |
246 | (F) You started to name a symbol by using a package prefix, and then didn't |
247 | finish the symbol. In particular, you can't interpolate outside of quotes, |
248 | so |
249 | |
250 | $var = 'myvar'; |
251 | $sym = mypack::$var; |
252 | |
253 | is not the same as |
254 | |
255 | $var = 'myvar'; |
256 | $sym = "mypack::$var"; |
257 | |
258 | =item Bad symbol for array |
259 | |
260 | (P) An internal request asked to add an array entry to something that |
261 | wasn't a symbol table entry. |
262 | |
263 | =item Bad symbol for filehandle |
264 | |
265 | (P) An internal request asked to add a filehandle entry to something that |
266 | wasn't a symbol table entry. |
267 | |
268 | =item Bad symbol for hash |
269 | |
270 | (P) An internal request asked to add a hash entry to something that |
271 | wasn't a symbol table entry. |
272 | |
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273 | =item Badly places ()'s |
274 | |
275 | (A) You've accidentally run your script through B<csh> instead |
276 | of Perl. Check the <#!> line, or manually feed your script |
277 | into Perl yourself. |
278 | |
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279 | =item BEGIN failed--compilation aborted |
280 | |
281 | (F) An untrapped exception was raised while executing a BEGIN subroutine. |
282 | Compilation stops immediately and the interpreter is exited. |
283 | |
284 | =item bind() on closed fd |
285 | |
286 | (W) You tried to do a bind on a closed socket. Did you forget to check |
287 | the return value of your socket() call? See L<perlfunc/bind>. |
288 | |
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289 | =item Bizarre copy of %s in %s |
290 | |
291 | (P) Perl detected an attempt to copy an internal value that is not copiable. |
292 | |
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293 | =item Callback called exit |
294 | |
295 | (F) A subroutine invoked from an external package via perl_call_sv() |
296 | exited by calling exit. |
297 | |
298 | =item Can't "last" outside a block |
299 | |
300 | (F) A "last" statement was executed to break out of the current block, |
301 | except that there's this itty bitty problem called there isn't a |
302 | current block. Note that an "if" or "else" block doesn't count as a |
303 | "loopish" block. You can usually double the curlies to get the same |
304 | effect though, since the inner curlies will be considered a block |
305 | that loops once. See L<perlfunc/last>. |
306 | |
307 | =item Can't "next" outside a block |
308 | |
309 | (F) A "next" statement was executed to reiterate the current block, but |
310 | there isn't a current block. Note that an "if" or "else" block doesn't |
311 | count as a "loopish" block. You can usually double the curlies to get |
312 | the same effect though, since the inner curlies will be considered a block |
313 | that loops once. See L<perlfunc/last>. |
314 | |
315 | =item Can't "redo" outside a block |
316 | |
317 | (F) A "redo" statement was executed to restart the current block, but |
318 | there isn't a current block. Note that an "if" or "else" block doesn't |
319 | count as a "loopish" block. You can usually double the curlies to get |
320 | the same effect though, since the inner curlies will be considered a block |
321 | that loops once. See L<perlfunc/last>. |
322 | |
323 | =item Can't bless non-reference value |
324 | |
325 | (F) Only hard references may be blessed. This is how Perl "enforces" |
326 | encapsulation of objects. See L<perlobj>. |
327 | |
328 | =item Can't break at that line |
329 | |
330 | (S) A warning intended for while running within the debugger, indicating |
331 | the line number specified wasn't the location of a statement that could |
332 | be stopped at. |
333 | |
334 | =item Can't call method "%s" in empty package "%s" |
335 | |
336 | (F) You called a method correctly, and it correctly indicated a package |
337 | functioning as a class, but that package doesn't have ANYTHING defined |
338 | in it, let alone methods. See L<perlobj>. |
339 | |
340 | =item Can't call method "%s" on unblessed reference |
341 | |
342 | (F) A method call must know what package it's supposed to run in. It |
343 | ordinarily finds this out from the object reference you supply, but |
344 | you didn't supply an object reference in this case. A reference isn't |
345 | an object reference until it has been blessed. See L<perlobj>. |
346 | |
347 | =item Can't call method "%s" without a package or object reference |
348 | |
349 | (F) You used the syntax of a method call, but the slot filled by the |
350 | object reference or package name contains an expression that returns |
351 | neither an object reference nor a package name. (Perhaps it's null?) |
352 | Something like this will reproduce the error: |
353 | |
354 | $BADREF = undef; |
355 | process $BADREF 1,2,3; |
356 | $BADREF->process(1,2,3); |
357 | |
358 | =item Can't chdir to %s |
359 | |
360 | (F) You called C<perl -x/foo/bar>, but C</foo/bar> is not a directory |
361 | that you can chdir to, possibly because it doesn't exist. |
362 | |
363 | =item Can't coerce %s to integer in %s |
364 | |
365 | (F) Certain types of SVs, in particular real symbol table entries |
366 | (type GLOB), can't be forced to stop being what they are. So you can't |
367 | say things like: |
368 | |
369 | *foo += 1; |
370 | |
371 | You CAN say |
372 | |
373 | $foo = *foo; |
374 | $foo += 1; |
375 | |
376 | but then $foo no longer contains a glob. |
377 | |
378 | =item Can't coerce %s to number in %s |
379 | |
380 | (F) Certain types of SVs, in particular real symbol table entries |
381 | (type GLOB), can't be forced to stop being what they are. |
382 | |
383 | =item Can't coerce %s to string in %s |
384 | |
385 | (F) Certain types of SVs, in particular real symbol table entries |
386 | (type GLOB), can't be forced to stop being what they are. |
387 | |
388 | =item Can't create pipe mailbox |
389 | |
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390 | (P) An error peculiar to VMS. The process is suffering from exhausted quotas |
391 | or other plumbing problems. |
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392 | |
393 | =item Can't declare %s in my |
394 | |
395 | (F) Only scalar, array and hash variables may be declared as lexical variables. |
396 | They must have ordinary identifiers as names. |
397 | |
398 | =item Can't do inplace edit on %s: %s |
399 | |
400 | (S) The creation of the new file failed for the indicated reason. |
401 | |
402 | =item Can't do inplace edit without backup |
403 | |
404 | (F) You're on a system such as MSDOS that gets confused if you try reading |
405 | from a deleted (but still opened) file. You have to say B<-i>C<.bak>, or some |
406 | such. |
407 | |
408 | =item Can't do inplace edit: %s > 14 characters |
409 | |
410 | (S) There isn't enough room in the filename to make a backup name for the file. |
411 | |
412 | =item Can't do inplace edit: %s is not a regular file |
413 | |
414 | (S) You tried to use the B<-i> switch on a special file, such as a file in |
415 | /dev, or a FIFO. The file was ignored. |
416 | |
417 | =item Can't do setegid! |
418 | |
419 | (P) The setegid() call failed for some reason in the setuid emulator |
420 | of suidperl. |
421 | |
422 | =item Can't do seteuid! |
423 | |
424 | (P) The setuid emulator of suidperl failed for some reason. |
425 | |
426 | =item Can't do setuid |
427 | |
428 | (F) This typically means that ordinary perl tried to exec suidperl to |
429 | do setuid emulation, but couldn't exec it. It looks for a name of the |
430 | form sperl5.000 in the same directory that the perl executable resides |
431 | under the name perl5.000, typically /usr/local/bin on Unix machines. |
432 | If the file is there, check the execute permissions. If it isn't, ask |
433 | your sysadmin why he and/or she removed it. |
434 | |
435 | =item Can't do waitpid with flags |
436 | |
437 | (F) This machine doesn't have either waitpid() or wait4(), so only waitpid() |
438 | without flags is emulated. |
439 | |
440 | =item Can't do {n,m} with n > m |
441 | |
442 | (F) Minima must be less than or equal to maxima. If you really want |
443 | your regexp to match something 0 times, just put {0}. See L<perlre>. |
444 | |
445 | =item Can't emulate -%s on #! line |
446 | |
447 | (F) The #! line specifies a switch that doesn't make sense at this point. |
448 | For example, it'd be kind of silly to put a B<-x> on the #! line. |
449 | |
450 | =item Can't exec "%s": %s |
451 | |
452 | (W) An system(), exec() or piped open call could not execute the named |
453 | program for the indicated reason. Typical reasons include: the permissions |
454 | were wrong on the file, the file wasn't found in C<$ENV{PATH}>, the |
455 | executable in question was compiled for another architecture, or the |
456 | #! line in a script points to an interpreter that can't be run for |
457 | similar reasons. (Or maybe your system doesn't support #! at all.) |
458 | |
459 | =item Can't exec %s |
460 | |
461 | (F) Perl was trying to execute the indicated program for you because that's |
462 | what the #! line said. If that's not what you wanted, you may need to |
463 | mention "perl" on the #! line somewhere. |
464 | |
465 | =item Can't execute %s |
466 | |
467 | (F) You used the B<-S> switch, but the script to execute could not be found |
468 | in the PATH, or at least not with the correct permissions. |
469 | |
470 | =item Can't find label %s |
471 | |
472 | (F) You said to goto a label that isn't mentioned anywhere that it's possible |
473 | for us to go to. See L<perlfunc/goto>. |
474 | |
475 | =item Can't find string terminator %s anywhere before EOF |
476 | |
477 | (F) Perl strings can stretch over multiple lines. This message means that |
478 | the closing delimiter was omitted. Since bracketed quotes count nesting |
479 | levels, the following is missing its final parenthesis: |
480 | |
481 | print q(The character '(' starts a side comment.) |
482 | |
483 | =item Can't fork |
484 | |
485 | (F) A fatal error occurred while trying to fork while opening a pipeline. |
486 | |
748a9306 |
487 | =item Can't get filespec - stale stat buffer? |
488 | |
489 | (S) A warning peculiar to VMS. This arises because of the difference between |
490 | access checks under VMS and under the Unix model Perl assumes. Under VMS, |
491 | access checks are done by filename, rather than by bits in the stat buffer, so |
492 | that ACLs and other protections can be taken into account. Unfortunately, Perl |
493 | assumes that the stat buffer contains all the necessary information, and passes |
494 | it, instead of the filespec, to the access checking routine. It will try to |
495 | retrieve the filespec using the device name and FID present in the stat buffer, |
496 | but this works only if you haven't made a subsequent call to the CRTL stat() |
497 | routine, since the device name is overwritten with each call. If this warning |
498 | appears, the name lookup failed, and the access checking routine gave up and |
499 | returned FALSE, just to be conservative. (Note: The access checking routine |
500 | knows about the Perl C<stat> operator and file tests, so you shouldn't ever |
501 | see this warning in response to a Perl command; it arises only if some internal |
502 | code takes stat buffers lightly.) |
503 | |
a0d0e21e |
504 | =item Can't get pipe mailbox device name |
505 | |
748a9306 |
506 | (P) An error peculiar to VMS. After creating a mailbox to act as a pipe, Perl |
507 | can't retrieve its name for later use. |
a0d0e21e |
508 | |
509 | =item Can't get SYSGEN parameter value for MAXBUF |
510 | |
748a9306 |
511 | (P) An error peculiar to VMS. Perl asked $GETSYI how big you want your |
512 | mailbox buffers to be, and didn't get an answer. |
a0d0e21e |
513 | |
514 | =item Can't goto subroutine outside a subroutine |
515 | |
516 | (F) The deeply magical "goto subroutine" call can only replace one subroutine |
517 | call for another. It can't manufacture one out of whole cloth. In general |
518 | you should only be calling it out of an AUTOLOAD routine anyway. See |
519 | L<perlfunc/goto>. |
520 | |
4633a7c4 |
521 | =item Can't localize a reference |
522 | |
523 | (F) You said something like C<local $$ref>, which is not allowed because |
524 | the compiler can't determine whether $ref will end up pointing to anything |
525 | with a symbol table entry, and a symbol table entry is necessary to |
526 | do a local. |
527 | |
748a9306 |
528 | =item Can't localize lexical variable %s |
529 | |
530 | (F) You used local on a variable name that was previous declared as a |
531 | lexical variable using "my". This is not allowed. If you want to |
532 | localize a package variable of the same name, qualify it with the |
533 | package name. |
534 | |
a0d0e21e |
535 | =item Can't locate %s in @INC |
536 | |
537 | (F) You said to do (or require, or use) a file that couldn't be found |
538 | in any of the libraries mentioned in @INC. Perhaps you need to set |
539 | the PERL5LIB environment variable to say where the extra library is, |
540 | or maybe the script needs to add the library name to @INC. Or maybe |
541 | you just misspelled the name of the file. See L<perlfunc/require>. |
542 | |
543 | =item Can't locate object method "%s" via package "%s" |
544 | |
545 | (F) You called a method correctly, and it correctly indicated a package |
546 | functioning as a class, but that package doesn't define that particular |
547 | method, nor does any of it's base classes. See L<perlobj>. |
548 | |
549 | =item Can't locate package %s for @%s::ISA |
550 | |
551 | (W) The @ISA array contained the name of another package that doesn't seem |
552 | to exist. |
553 | |
554 | =item Can't mktemp() |
555 | |
556 | (F) The mktemp() routine failed for some reason while trying to process |
557 | a B<-e> switch. Maybe your /tmp partition is full, or clobbered. |
558 | |
559 | =item Can't modify %s in %s |
560 | |
561 | (F) You aren't allowed to assign to the item indicated, or otherwise try to |
562 | change it, such as with an autoincrement. |
563 | |
564 | =item Can't modify non-existent substring |
565 | |
566 | (P) The internal routine that does assignment to a substr() was handed |
567 | a NULL. |
568 | |
569 | =item Can't msgrcv to readonly var |
570 | |
571 | (F) The target of a msgrcv must be modifiable in order to be used as a receive |
572 | buffer. |
573 | |
574 | =item Can't open %s: %s |
575 | |
576 | (S) An inplace edit couldn't open the original file for the indicated reason. |
577 | Usually this is because you don't have read permission for the file. |
578 | |
579 | =item Can't open bidirectional pipe |
580 | |
581 | (W) You tried to say C<open(CMD, "|cmd|")>, which is not supported. You can |
582 | try any of several modules in the Perl library to do this, such as |
583 | "open2.pl". Alternately, direct the pipe's output to a file using ">", |
584 | and then read it in under a different file handle. |
585 | |
748a9306 |
586 | =item Can't open error file %s as stderr |
587 | |
588 | (F) An error peculiar to VMS. Perl does its own command line redirection, and |
589 | couldn't open the file specified after '2>' or '2>>' on the command line for |
590 | writing. |
591 | |
592 | =item Can't open input file %s as stdin |
593 | |
594 | (F) An error peculiar to VMS. Perl does its own command line redirection, and |
595 | couldn't open the file specified after '<' on the command line for reading. |
596 | |
597 | =item Can't open output file %s as stdout |
598 | |
599 | (F) An error peculiar to VMS. Perl does its own command line redirection, and |
600 | couldn't open the file specified after '>' or '>>' on the command line for |
601 | writing. |
602 | |
603 | =item Can't open output pipe (name: %s) |
604 | |
605 | (P) An error peculiar to VMS. Perl does its own command line redirection, and |
606 | couldn't open the pipe into which to send data destined for stdout. |
607 | |
a0d0e21e |
608 | =item Can't open perl script "%s": %s |
609 | |
610 | (F) The script you specified can't be opened for the indicated reason. |
611 | |
612 | =item Can't rename %s to %s: %s, skipping file |
613 | |
614 | (S) The rename done by the B<-i> switch failed for some reason, probably because |
615 | you don't have write permission to the directory. |
616 | |
748a9306 |
617 | =item Can't reopen input pipe (name: %s) in binary mode |
618 | |
619 | (P) An error peculiar to VMS. Perl thought stdin was a pipe, and tried to |
620 | reopen it to accept binary data. Alas, it failed. |
621 | |
a0d0e21e |
622 | =item Can't reswap uid and euid |
623 | |
624 | (P) The setreuid() call failed for some reason in the setuid emulator |
625 | of suidperl. |
626 | |
627 | =item Can't return outside a subroutine |
628 | |
629 | (F) The return statement was executed in mainline code, that is, where |
630 | there was no subroutine call to return out of. See L<perlsub>. |
631 | |
632 | =item Can't stat script "%s" |
633 | |
634 | (P) For some reason you can't fstat() the script even though you have |
635 | it open already. Bizarre. |
636 | |
637 | =item Can't swap uid and euid |
638 | |
639 | (P) The setreuid() call failed for some reason in the setuid emulator |
640 | of suidperl. |
641 | |
642 | =item Can't take log of %g |
643 | |
644 | (F) Logarithms are only defined on positive real numbers. |
645 | |
646 | =item Can't take sqrt of %g |
647 | |
648 | (F) For ordinary real numbers, you can't take the square root of a |
649 | negative number. There's a Complex package available for Perl, though, |
650 | if you really want to do that. |
651 | |
652 | =item Can't undef active subroutine |
653 | |
654 | (F) You can't undefine a routine that's currently running. You can, |
655 | however, redefine it while it's running, and you can even undef the |
656 | redefined subroutine while the old routine is running. Go figure. |
657 | |
658 | =item Can't unshift |
659 | |
660 | (F) You tried to unshift an "unreal" array that can't be unshifted, such |
661 | as the main Perl stack. |
662 | |
663 | =item Can't upgrade that kind of scalar |
664 | |
665 | (P) The internal sv_upgrade routine adds "members" to an SV, making |
666 | it into a more specialized kind of SV. The top several SV types are |
667 | so specialized, however, that they cannot be interconverted. This |
668 | message indicates that such a conversion was attempted. |
669 | |
670 | =item Can't upgrade to undef |
671 | |
672 | (P) The undefined SV is the bottom of the totem pole, in the scheme |
673 | of upgradability. Upgrading to undef indicates an error in the |
674 | code calling sv_upgrade. |
675 | |
a0d0e21e |
676 | =item Can't use %s for loop variable |
677 | |
678 | (F) Only a simple scalar variable may be used as a loop variable on a foreach. |
679 | |
680 | =item Can't use %s ref as %s ref |
681 | |
682 | (F) You've mixed up your reference types. You have to dereference a |
683 | reference of the type needed. You can use the ref() function to |
684 | test the type of the reference, if need be. |
685 | |
748a9306 |
686 | =item Can't use \1 to mean $1 in expression |
687 | |
688 | (W) In an ordinary expression, backslash is a unary operator that creates |
689 | a reference to its argument. The use of backslash to indicate a backreference |
690 | to a matched substring is only valid as part of a regular expression pattern. |
691 | Trying to do this in ordinary Perl code produces a value that prints |
692 | out looking like SCALAR(0xdecaf). Use the $1 form instead. |
693 | |
694 | =item Can't use string ("%s") as %s ref while "strict refs" in use |
a0d0e21e |
695 | |
696 | (F) Only hard references are allowed by "strict refs". Symbolic references |
697 | are disallowed. See L<perlref>. |
698 | |
699 | =item Can't use an undefined value as %s reference |
700 | |
701 | (F) A value used as either a hard reference or a symbolic reference must |
702 | be a defined value. This helps to de-lurk some insidious errors. |
703 | |
704 | =item Can't use delimiter brackets within expression |
705 | |
706 | (F) The ${name} construct is for disambiguating identifiers in strings, not |
707 | in ordinary code. |
708 | |
709 | =item Can't use global %s in "my" |
710 | |
711 | (F) You tried to declare a magical variable as a lexical variable. This is |
712 | not allowed, because the magic can only be tied to one location (namely |
713 | the global variable) and it would be incredibly confusing to have |
714 | variables in your program that looked like magical variables but |
715 | weren't. |
716 | |
748a9306 |
717 | =item Can't use subscript on %s |
718 | |
719 | (F) The compiler tried to interpret a bracketed expression as a |
720 | subscript. But to the left of the brackets was an expression that |
721 | didn't look like an array reference, or anything else subscriptable. |
722 | |
a0d0e21e |
723 | =item Can't write to temp file for B<-e>: %s |
724 | |
725 | (F) The write routine failed for some reason while trying to process |
726 | a B<-e> switch. Maybe your /tmp partition is full, or clobbered. |
727 | |
728 | =item Can't x= to readonly value |
729 | |
730 | (F) You tried to repeat a constant value (often the undefined value) with |
731 | an assignment operator, which implies modifying the value itself. |
732 | Perhaps you need to copy the value to a temporary, and repeat that. |
733 | |
734 | =item Cannot open temporary file |
735 | |
736 | (F) The create routine failed for some reaon while trying to process |
737 | a B<-e> switch. Maybe your /tmp partition is full, or clobbered. |
738 | |
739 | =item chmod: mode argument is missing initial 0 |
740 | |
741 | (W) A novice will sometimes say |
742 | |
743 | chmod 777, $filename |
744 | |
745 | not realizing that 777 will be interpreted as a decimal number, equivalent |
746 | to 01411. Octal constants are introduced with a leading 0 in Perl, as in C. |
747 | |
748 | =item Close on unopened file <%s> |
749 | |
750 | (W) You tried to close a filehandle that was never opened. |
751 | |
752 | =item connect() on closed fd |
753 | |
754 | (W) You tried to do a connect on a closed socket. Did you forget to check |
755 | the return value of your socket() call? See L<perlfunc/connect>. |
756 | |
757 | =item Corrupt malloc ptr 0x%lx at 0x%lx |
758 | |
759 | (P) The malloc package that comes with Perl had an internal failure. |
760 | |
761 | =item corrupted regexp pointers |
762 | |
763 | (P) The regular expression engine got confused by what the regular |
764 | expression compiler gave it. |
765 | |
766 | =item corrupted regexp program |
767 | |
768 | (P) The regular expression engine got passed a regexp program without |
769 | a valid magic number. |
770 | |
771 | =item Deep recursion on subroutine "%s" |
772 | |
773 | (W) This subroutine has called itself (directly or indirectly) 100 |
774 | times than it has returned. This probably indicates an infinite |
775 | recursion, unless you're writing strange benchmark programs, in which |
776 | case it indicates something else. |
777 | |
4633a7c4 |
778 | =item Did you mean &%s instead? |
779 | |
780 | (W) You probably referred to an imported subroutine &FOO as $FOO or some such. |
781 | |
748a9306 |
782 | =item Did you mean $ or @ instead of %? |
a0d0e21e |
783 | |
748a9306 |
784 | (W) You probably said %hash{$key} when you meant $hash{$key} or @hash{@keys}. |
785 | On the other hand, maybe you just meant %hash and got carried away. |
786 | |
787 | =item Do you need to predeclare %s? |
788 | |
789 | (S) This is an educated guess made in conjunction with the message "%s |
790 | found where operator expected". It often means a subroutine or module |
791 | name is being referenced that hasn't been declared yet. This may be |
792 | because of ordering problems in your file, or because of a missing |
793 | "sub", "package", "require", or "use" statement. If you're |
794 | referencing something that isn't defined yet, you don't actually have |
795 | to define the subroutine or package before the current location. You |
796 | can use an empty "sub foo;" or "package FOO;" to enter a "forward" |
797 | declaration. |
a0d0e21e |
798 | |
799 | =item Don't know how to handle magic of type '%s' |
800 | |
801 | (P) The internal handling of magical variables has been cursed. |
802 | |
803 | =item do_study: out of memory |
804 | |
805 | (P) This should have been caught by safemalloc() instead. |
806 | |
807 | =item Duplicate free() ignored |
808 | |
809 | (S) An internal routine called free() on something that had already |
810 | been freed. |
811 | |
4633a7c4 |
812 | =item elseif should be elsif |
813 | |
814 | (S) There is no keyword "elseif" in Perl because Larry thinks it's |
815 | ugly. Your code will be interpreted as an attempt to call a method |
816 | named "elseif" for the class returned by the following block. This is |
817 | unlikely to be what you want. |
818 | |
a0d0e21e |
819 | =item END failed--cleanup aborted |
820 | |
821 | (F) An untrapped exception was raised while executing an END subroutine. |
822 | The interpreter is immediately exited. |
823 | |
748a9306 |
824 | =item Error converting file specification %s |
825 | |
826 | (F) An error peculiar to VMS. Since Perl may have to deal with file |
827 | specifications in either VMS or Unix syntax, it converts them to a |
828 | single form when it must operate on them directly. Either you've |
829 | passed an invalid file specification to Perl, or you've found a |
830 | case the conversion routines don't handle. Drat. |
831 | |
a0d0e21e |
832 | =item Execution of %s aborted due to compilation errors. |
833 | |
834 | (F) The final summary message when a Perl compilation fails. |
835 | |
836 | =item Exiting eval via %s |
837 | |
838 | (W) You are exiting an eval by unconventional means, such as a |
839 | a goto, or a loop control statement. |
840 | |
841 | =item Exiting subroutine via %s |
842 | |
843 | (W) You are exiting a subroutine by unconventional means, such as a |
844 | a goto, or a loop control statement. |
845 | |
846 | =item Exiting substitution via %s |
847 | |
848 | (W) You are exiting a substitution by unconventional means, such as a |
849 | a return, a goto, or a loop control statement. |
850 | |
748a9306 |
851 | =item Fatal VMS error at %s, line %d |
a0d0e21e |
852 | |
748a9306 |
853 | (P) An error peculiar to VMS. Something untoward happened in a VMS system |
854 | service or RTL routine; Perl's exit status should provide more details. The |
855 | filename in "at %s" and the line number in "line %d" tell you which section of |
856 | the Perl source code is distressed. |
a0d0e21e |
857 | |
858 | =item fcntl is not implemented |
859 | |
860 | (F) Your machine apparently doesn't implement fcntl(). What is this, a |
861 | PDP-11 or something? |
862 | |
863 | =item Filehandle %s never opened |
864 | |
865 | (W) An I/O operation was attempted on a filehandle that was never initialized. |
866 | You need to do an open() or a socket() call, or call a constructor from |
867 | the FileHandle package. |
868 | |
869 | =item Filehandle %s opened only for input |
870 | |
871 | (W) You tried to write on a read-only filehandle. If you |
872 | intended it to be a read-write filehandle, you needed to open it with |
873 | "+<" or "+>" or "+>>" instead of with "<" or nothing. If you only |
874 | intended to write the file, use ">" or ">>". See L<perlfunc/open>. |
875 | |
876 | =item Filehandle only opened for input |
877 | |
878 | (W) You tried to write on a read-only filehandle. If you |
879 | intended it to be a read-write filehandle, you needed to open it with |
880 | "+<" or "+>" or "+>>" instead of with "<" or nothing. If you only |
881 | intended to write the file, use ">" or ">>". See L<perlfunc/open>. |
882 | |
883 | =item Final $ should be \$ or $name |
884 | |
885 | (F) You must now decide whether the final $ in a string was meant to be |
886 | a literal dollar sign, or was meant to introduce a variable name |
887 | that happens to be missing. So you have to put either the backslash or |
888 | the name. |
889 | |
890 | =item Final @ should be \@ or @name |
891 | |
892 | (F) You must now decide whether the final @ in a string was meant to be |
893 | a literal "at" sign, or was meant to introduce a variable name |
894 | that happens to be missing. So you have to put either the backslash or |
895 | the name. |
896 | |
897 | =item Format %s redefined |
898 | |
899 | (W) You redefined a format. To suppress this warning, say |
900 | |
901 | { |
902 | local $^W = 0; |
903 | eval "format NAME =..."; |
904 | } |
905 | |
906 | =item Format not terminated |
907 | |
908 | (F) A format must be terminated by a line with a solitary dot. Perl got |
909 | to the end of your file without finding such a line. |
910 | |
911 | =item Found = in conditional, should be == |
912 | |
913 | (W) You said |
914 | |
915 | if ($foo = 123) |
916 | |
917 | when you meant |
918 | |
919 | if ($foo == 123) |
920 | |
921 | (or something like that). |
922 | |
923 | =item gdbm store returned %d, errno %d, key "%s" |
924 | |
925 | (S) A warning from the GDBM_File extension that a store failed. |
926 | |
927 | =item gethostent not implemented |
928 | |
929 | (F) Your C library apparently doesn't implement gethostent(), probably |
930 | because if it did, it'd feel morally obligated to return every hostname |
931 | on the Internet. |
932 | |
933 | =item get{sock,peer}name() on closed fd |
934 | |
935 | (W) You tried to get a socket or peer socket name on a closed socket. |
936 | Did you forget to check the return value of your socket() call? |
937 | |
748a9306 |
938 | =item getpwnam returned invalid UIC %#o for user "%s" |
939 | |
940 | (S) A warning peculiar to VMS. The call to C<sys$getuai> underlying the |
941 | C<getpwnam> operator returned an invalid UIC. |
942 | |
943 | |
a0d0e21e |
944 | =item Glob not terminated |
945 | |
946 | (F) The lexer saw a left angle bracket in a place where it was expecting |
947 | a term, so it's looking for the corresponding right angle bracket, and not |
948 | finding it. Chances are you left some needed parentheses out earlier in |
949 | the line, and you really meant a "less than". |
950 | |
951 | =item Global symbol "%s" requires explicit package name |
952 | |
953 | (F) You've said "use strict vars", which indicates that all variables must |
954 | either be lexically scoped (using "my"), or explicitly qualified to |
955 | say which package the global variable is in (using "::"). |
956 | |
957 | =item goto must have label |
958 | |
959 | (F) Unlike with "next" or "last", you're not allowed to goto an |
960 | unspecified destination. See L<perlfunc/goto>. |
961 | |
962 | =item Had to create %s unexpectedly |
963 | |
964 | (S) A routine asked for a symbol from a symbol table that ought to have |
965 | existed already, but for some reason it didn't, and had to be created on |
966 | an emergency basis to prevent a core dump. |
967 | |
968 | =item Hash %%s missing the % in argument %d of %s() |
969 | |
970 | (D) Really old Perl let you omit the % on hash names in some spots. This |
971 | is now heavily deprecated. |
972 | |
973 | =item Identifier "%s::%s" used only once: possible typo |
974 | |
975 | (W) Typographical errors often show up as unique identifiers. If you |
976 | had a good reason for having a unique identifier, then just mention it |
977 | again somehow to suppress the message. |
978 | |
979 | =item Illegal division by zero |
980 | |
981 | (F) You tried to divide a number by 0. Either something was wrong in your |
982 | logic, or you need to put a conditional in to guard against meaningless input. |
983 | |
984 | =item Illegal modulus zero |
985 | |
986 | (F) You tried to divide a number by 0 to get the remainder. Most numbers |
987 | don't take to this kindly. |
988 | |
989 | =item Illegal octal digit |
990 | |
991 | (F) You used an 8 or 9 in a octal number. |
992 | |
748a9306 |
993 | =item Illegal octal digit ignored |
994 | |
995 | (W) You may have tried to use an 8 or 9 in a octal number. Interpretation |
996 | of the octal number stopped before the 8 or 9. |
997 | |
a0d0e21e |
998 | =item Insecure dependency in %s |
999 | |
1000 | (F) You tried to do something that the tainting mechanism didn't like. |
1001 | The tainting mechanism is turned on when you're running setuid or setgid, |
1002 | or when you specify B<-T> to turn it on explicitly. The tainting mechanism |
1003 | labels all data that's derived directly or indirectly from the user, |
1004 | who is considered to be unworthy of your trust. If any such data is |
1005 | used in a "dangerous" operation, you get this error. See L<perlsec> |
1006 | for more information. |
1007 | |
1008 | =item Insecure directory in %s |
1009 | |
1010 | (F) You can't use system(), exec(), or a piped open in a setuid or setgid |
1011 | script if $ENV{PATH} contains a directory that is writable by the world. |
1012 | See L<perlsec>. |
1013 | |
1014 | =item Insecure PATH |
1015 | |
1016 | (F) You can't use system(), exec(), or a piped open in a setuid or |
1017 | setgid script if $ENV{PATH} is derived from data supplied (or |
1018 | potentially supplied) by the user. The script must set the path to a |
1019 | known value, using trustworthy data. See L<perlsec>. |
1020 | |
748a9306 |
1021 | =item Internal inconsistency in tracking vforks |
1022 | |
1023 | (S) A warning peculiar to VMS. Perl keeps track of the number |
1024 | of times you've called C<fork> and C<exec>, in order to determine |
1025 | whether the current call to C<exec> should be affect the current |
1026 | script or a subprocess (see L<perlvms/exec>). Somehow, this count |
1027 | has become scrambled, so Perl is making a guess and treating |
1028 | this C<exec> as a request to terminate the Perl script |
1029 | and execute the specified command. |
1030 | |
a0d0e21e |
1031 | =item internal disaster in regexp |
1032 | |
1033 | (P) Something went badly wrong in the regular expression parser. |
1034 | |
1035 | =item internal urp in regexp at /%s/ |
1036 | |
1037 | (P) Something went badly awry in the regular expression parser. |
1038 | |
1039 | =item invalid [] range in regexp |
1040 | |
1041 | (F) The range specified in a character class had a minimum character |
1042 | greater than the maximum character. See L<perlre>. |
1043 | |
1044 | =item ioctl is not implemented |
1045 | |
1046 | (F) Your machine apparently doesn't implement ioctl(), which is pretty |
1047 | strange for a machine that supports C. |
1048 | |
1049 | =item junk on end of regexp |
1050 | |
1051 | (P) The regular expression parser is confused. |
1052 | |
1053 | =item Label not found for "last %s" |
1054 | |
1055 | (F) You named a loop to break out of, but you're not currently in a |
1056 | loop of that name, not even if you count where you were called from. |
1057 | See L<perlfunc/last>. |
1058 | |
1059 | =item Label not found for "next %s" |
1060 | |
1061 | (F) You named a loop to continue, but you're not currently in a loop of |
1062 | that name, not even if you count where you were called from. See |
1063 | L<perlfunc/last>. |
1064 | |
1065 | =item Label not found for "redo %s" |
1066 | |
1067 | (F) You named a loop to restart, but you're not currently in a loop of |
1068 | that name, not even if you count where you were called from. See |
1069 | L<perlfunc/last>. |
1070 | |
1071 | =item listen() on closed fd |
1072 | |
1073 | (W) You tried to do a listen on a closed socket. Did you forget to check |
1074 | the return value of your socket() call? See L<perlfunc/listen>. |
1075 | |
1076 | =item Literal @%s now requires backslash |
1077 | |
1078 | (F) It used to be that Perl would try to guess whether you wanted an |
1079 | array interpolated or a literal @. It did this when the string was |
1080 | first used at runtime. Now strings are parsed at compile time, and |
1081 | ambiguous instances of @ must be disambiguated, either by putting a |
1082 | backslash to indicate a literal, or by declaring (or using) the array |
1083 | within the program before the string (lexically). (Someday it will simply |
1084 | assume that an unbackslashed @ interpolates an array.) |
1085 | |
1086 | =item Method for operation %s not found in package %s during blessing |
1087 | |
1088 | (F) An attempt was made to specify an entry in an overloading table that |
1089 | doesn't somehow point to a valid method. See L<perlovl>. |
1090 | |
1091 | =item Might be a runaway multi-line %s string starting on line %d |
1092 | |
1093 | (S) An advisory indicating that the previous error may have been caused |
1094 | by a missing delimiter on a string or pattern, because it eventually |
1095 | ended earlier on the current line. |
1096 | |
1097 | =item Misplaced _ in number |
1098 | |
1099 | (W) An underline in a decimal constant wasn't on a 3-digit boundary. |
1100 | |
1101 | =item Missing $ on loop variable |
1102 | |
1103 | (F) Apparently you've been programming in csh too much. Variables are always |
1104 | mentioned with the $ in Perl, unlike in the shells, where it can vary from |
1105 | one line to the next. |
1106 | |
1107 | =item Missing comma after first argument to %s function |
1108 | |
1109 | (F) While certain functions allow you to specify a filehandle or an |
1110 | "indirect object" before the argument list, this ain't one of them. |
1111 | |
748a9306 |
1112 | =item Missing operator before %s? |
1113 | |
1114 | (S) This is an educated guess made in conjunction with the message "%s |
1115 | found where operator expected". Often the missing operator is a comma. |
1116 | |
a0d0e21e |
1117 | =item Missing right bracket |
1118 | |
1119 | (F) The lexer counted more opening curly brackets (braces) than closing ones. |
1120 | As a general rule, you'll find it's missing near the place you were last |
1121 | editing. |
1122 | |
1123 | =item Missing semicolon on previous line? |
1124 | |
1125 | (S) This is an educated guess made in conjunction with the message "%s |
1126 | found where operator expected". Don't automatically put a semicolon on |
1127 | the previous line just because you saw this message. |
1128 | |
1129 | =item Modification of a read-only value attempted |
1130 | |
1131 | (F) You tried, directly or indirectly, to change the value of a |
1132 | constant. You didn't, of course, try "2 = 1", since the compiler |
1133 | catches that. But an easy way to do the same thing is: |
1134 | |
1135 | sub mod { $_[0] = 1 } |
1136 | mod(2); |
1137 | |
1138 | Another way is to assign to a substr() that's off the end of the string. |
1139 | |
1140 | =item Modification of non-creatable array value attempted, subscript %d |
1141 | |
1142 | (F) You tried to make an array value spring into existence, and the |
1143 | subscript was probably negative, even counting from end of the array |
1144 | backwards. |
1145 | |
1146 | =item Modification of non-creatable hash value attempted, subscript "%s" |
1147 | |
1148 | (F) You tried to make a hash value spring into existence, and it couldn't |
1149 | be created for some peculiar reason. |
1150 | |
1151 | =item Module name must be constant |
1152 | |
1153 | (F) Only a bare module name is allowed as the first argument to a "use". |
1154 | |
1155 | =item msg%s not implemented |
1156 | |
1157 | (F) You don't have System V message IPC on your system. |
1158 | |
1159 | =item Multidimensional syntax %s not supported |
1160 | |
1161 | (W) Multidimensional arrays aren't written like $foo[1,2,3]. They're written |
1162 | like $foo[1][2][3], as in C. |
1163 | |
1164 | =item Negative length |
1165 | |
1166 | (F) You tried to do a read/write/send/recv operation with a buffer length |
1167 | that is less than 0. This is difficult to imagine. |
1168 | |
1169 | =item nested *?+ in regexp |
1170 | |
1171 | (F) You can't quantify a quantifier without intervening parens. So |
1172 | things like ** or +* or ?* are illegal. |
1173 | |
1174 | Note, however, that the minimal matching quantifiers, *?, +? and ?? appear |
1175 | to be nested quantifiers, but aren't. See L<perlre>. |
1176 | |
1177 | =item No #! line |
1178 | |
1179 | (F) The setuid emulator requires that scripts have a well-formed #! line |
1180 | even on machines that don't support the #! construct. |
1181 | |
1182 | =item No %s allowed while running setuid |
1183 | |
1184 | (F) Certain operations are deemed to be too insecure for a setuid or setgid |
1185 | script to even be allowed to attempt. Generally speaking there will be |
1186 | another way to do what you want that is, if not secure, at least securable. |
1187 | See L<perlsec>. |
1188 | |
1189 | =item No B<-e> allowed in setuid scripts |
1190 | |
1191 | (F) A setuid script can't be specified by the user. |
1192 | |
1193 | =item No comma allowed after %s |
1194 | |
1195 | (F) A list operator that has a filehandle or "indirect object" is not |
1196 | allowed to have a comma between that and the following arguments. |
1197 | Otherwise it'd be just another one of the arguments. |
1198 | |
748a9306 |
1199 | =item No command into which to pipe on command line |
1200 | |
1201 | (F) An error peculiar to VMS. Perl handles its own command line redirection, |
1202 | and found a '|' at the end of the command line, so it doesn't know whither you |
1203 | want to pipe the output from this command. |
1204 | |
a0d0e21e |
1205 | =item No DB::DB routine defined |
1206 | |
1207 | (F) The currently executing code was compiled with the B<-d> switch, |
1208 | but for some reason the perl5db.pl file (or some facsimile thereof) |
1209 | didn't define a routine to be called at the beginning of each |
1210 | statement. Which is odd, because the file should have been required |
1211 | automatically, and should have blown up the require if it didn't parse |
1212 | right. |
1213 | |
1214 | =item No dbm on this machine |
1215 | |
1216 | (P) This is counted as an internal error, because every machine should |
1217 | supply dbm nowadays, since Perl comes with SDBM. See L<SDBM_File>. |
1218 | |
1219 | =item No DBsub routine |
1220 | |
1221 | (F) The currently executing code was compiled with the B<-d> switch, |
1222 | but for some reason the perl5db.pl file (or some facsimile thereof) |
1223 | didn't define a DB::sub routine to be called at the beginning of each |
1224 | ordinary subroutine call. |
1225 | |
748a9306 |
1226 | =item No error file after 2> or 2>> on command line |
1227 | |
1228 | (F) An error peculiar to VMS. Perl handles its own command line redirection, |
1229 | and found a '2>' or a '2>>' on the command line, but can't find the name of the |
1230 | file to which to write data destined for stderr. |
1231 | |
1232 | =item No input file after < on command line |
1233 | |
1234 | (F) An error peculiar to VMS. Perl handles its own command line redirection, |
1235 | and found a '<' on the command line, but can't find the name of the file from |
1236 | which to read data for stdin. |
1237 | |
1238 | =item No output file after > on command line |
1239 | |
1240 | (F) An error peculiar to VMS. Perl handles its own command line redirection, |
1241 | and found a lone '>' at the end of the command line, so it doesn't know whither |
1242 | you wanted to redirect stdout. |
1243 | |
1244 | =item No output file after > or >> on command line |
1245 | |
1246 | (F) An error peculiar to VMS. Perl handles its own command line redirection, |
1247 | and found a '>' or a '>>' on the command line, but can't find the name of the |
1248 | file to which to write data destined for stdout. |
1249 | |
a0d0e21e |
1250 | =item No Perl script found in input |
1251 | |
1252 | (F) You called C<perl -x>, but no line was found in the file beginning |
1253 | with #! and containing the word "perl". |
1254 | |
1255 | =item No setregid available |
1256 | |
1257 | (F) Configure didn't find anything resembling the setregid() call for |
1258 | your system. |
1259 | |
1260 | =item No setreuid available |
1261 | |
1262 | (F) Configure didn't find anything resembling the setreuid() call for |
1263 | your system. |
1264 | |
1265 | =item No space allowed after B<-I> |
1266 | |
1267 | (F) The argument to B<-I> must follow the B<-I> immediately with no |
1268 | intervening space. |
1269 | |
748a9306 |
1270 | =item No such pipe open |
1271 | |
1272 | (P) An error peculiar to VMS. The internal routine my_pclose() tried to |
1273 | close a pipe which hadn't been opened. This should have been caught earlier as |
1274 | an attempt to close an unopened filehandle. |
1275 | |
a0d0e21e |
1276 | =item No such signal: SIG%s |
1277 | |
1278 | (W) You specified a signal name as a subscript to %SIG that was not recognized. |
1279 | Say C<kill -l> in your shell to see the valid signal names on your system. |
1280 | |
1281 | =item Not a CODE reference |
1282 | |
1283 | (F) Perl was trying to evaluate a reference to a code value (that is, a |
1284 | subroutine), but found a reference to something else instead. You can |
1285 | use the ref() function to find out what kind of ref it really was. |
1286 | See also L<perlref>. |
1287 | |
1288 | =item Not a format reference |
1289 | |
1290 | (F) I'm not sure how you managed to generate a reference to an anonymous |
1291 | format, but this indicates you did, and that it didn't exist. |
1292 | |
1293 | =item Not a GLOB reference |
1294 | |
1295 | (F) Perl was trying to evaluate a reference to a "type glob" (that is, |
1296 | a symbol table entry that looks like C<*foo>), but found a reference to |
1297 | something else instead. You can use the ref() function to find out |
1298 | what kind of ref it really was. See L<perlref>. |
1299 | |
1300 | =item Not a HASH reference |
1301 | |
1302 | (F) Perl was trying to evaluate a reference to a hash value, but |
1303 | found a reference to something else instead. You can use the ref() |
1304 | function to find out what kind of ref it really was. See L<perlref>. |
1305 | |
1306 | =item Not a perl script |
1307 | |
1308 | (F) The setuid emulator requires that scripts have a well-formed #! line |
1309 | even on machines that don't support the #! construct. The line must |
1310 | mention perl. |
1311 | |
1312 | =item Not a SCALAR reference |
1313 | |
1314 | (F) Perl was trying to evaluate a reference to a scalar value, but |
1315 | found a reference to something else instead. You can use the ref() |
1316 | function to find out what kind of ref it really was. See L<perlref>. |
1317 | |
1318 | =item Not a subroutine reference |
1319 | |
1320 | (F) Perl was trying to evaluate a reference to a code value (that is, a |
1321 | subroutine), but found a reference to something else instead. You can |
1322 | use the ref() function to find out what kind of ref it really was. |
1323 | See also L<perlref>. |
1324 | |
1325 | =item Not a subroutine reference in %OVERLOAD |
1326 | |
1327 | (F) An attempt was made to specify an entry in an overloading table that |
1328 | doesn't somehow point to a valid subroutine. See L<perlovl>. |
1329 | |
1330 | =item Not an ARRAY reference |
1331 | |
1332 | (F) Perl was trying to evaluate a reference to an array value, but |
1333 | found a reference to something else instead. You can use the ref() |
1334 | function to find out what kind of ref it really was. See L<perlref>. |
1335 | |
1336 | =item Not enough arguments for %s |
1337 | |
1338 | (F) The function requires more arguments than you specified. |
1339 | |
1340 | =item Not enough format arguments |
1341 | |
1342 | (W) A format specified more picture fields than the next line supplied. |
1343 | See L<perlform>. |
1344 | |
1345 | =item Null filename used |
1346 | |
1347 | (F) You can't require the null filename, especially since on many machines |
1348 | that means the current directory! See L<perlfunc/require>. |
1349 | |
1350 | =item NULL OP IN RUN |
1351 | |
1352 | (P) Some internal routine called run() with a null opcode pointer. |
1353 | |
1354 | =item Null realloc |
1355 | |
1356 | (P) An attempt was made to realloc NULL. |
1357 | |
1358 | =item NULL regexp argument |
1359 | |
1360 | (P) The internal pattern matching routines blew it bigtime. |
1361 | |
1362 | =item NULL regexp parameter |
1363 | |
1364 | (P) The internal pattern matching routines are out of their gourd. |
1365 | |
1366 | =item Odd number of elements in hash list |
1367 | |
1368 | (S) You specified an odd number of elements to a hash list, which is odd, |
1369 | since hash lists come in key/value pairs. |
1370 | |
1371 | =item oops: oopsAV |
1372 | |
1373 | (S) An internal warning that the grammar is screwed up. |
1374 | |
1375 | =item oops: oopsHV |
1376 | |
1377 | (S) An internal warning that the grammar is screwed up. |
1378 | |
1379 | =item Operation `%s' %s: no method found, |
1380 | |
1381 | (F) An attempt was made to use an entry in an overloading table that |
1382 | somehow no longer points to a valid method. See L<perlovl>. |
1383 | |
748a9306 |
1384 | =item Operator or semicolon missing before %s |
1385 | |
1386 | (S) You used a variable or subroutine call where the parser was |
1387 | expecting an operator. The parser has assumed you really meant |
1388 | to use an operator, but this is highly likely to be incorrect. |
1389 | For example, if you say "*foo *foo" it will be interpreted as |
1390 | if you said "*foo * 'foo'". |
1391 | |
a0d0e21e |
1392 | =item Out of memory for yacc stack |
1393 | |
1394 | (F) The yacc parser wanted to grow its stack so it could continue parsing, |
1395 | but realloc() wouldn't give it more memory, virtual or otherwise. |
1396 | |
1397 | =item Out of memory! |
1398 | |
1399 | (X) The malloc() function returned 0, indicating there was insufficient |
1400 | remaining memory (or virtual memory) to satisfy the request. |
1401 | |
1402 | =item page overflow |
1403 | |
1404 | (W) A single call to write() produced more lines than can fit on a page. |
1405 | See L<perlform>. |
1406 | |
1407 | =item panic: ck_grep |
1408 | |
1409 | (P) Failed an internal consistency check trying to compile a grep. |
1410 | |
1411 | =item panic: ck_split |
1412 | |
1413 | (P) Failed an internal consistency check trying to compile a split. |
1414 | |
1415 | =item panic: corrupt saved stack index |
1416 | |
1417 | (P) The savestack was requested to restore more localized values than there |
1418 | are in the savestack. |
1419 | |
1420 | =item panic: die %s |
1421 | |
1422 | (P) We popped the context stack to an eval context, and then discovered |
1423 | it wasn't an eval context. |
1424 | |
1425 | =item panic: do_match |
1426 | |
1427 | (P) The internal pp_match() routine was called with invalid operational data. |
1428 | |
1429 | =item panic: do_split |
1430 | |
1431 | (P) Something terrible went wrong in setting up for the split. |
1432 | |
1433 | =item panic: do_subst |
1434 | |
1435 | (P) The internal pp_subst() routine was called with invalid operational data. |
1436 | |
1437 | =item panic: do_trans |
1438 | |
1439 | (P) The internal do_trans() routine was called with invalid operational data. |
1440 | |
1441 | =item panic: goto |
1442 | |
1443 | (P) We popped the context stack to a context with the specified label, |
1444 | and then discovered it wasn't a context we know how to do a goto in. |
1445 | |
1446 | =item panic: INTERPCASEMOD |
1447 | |
1448 | (P) The lexer got into a bad state at a case modifier. |
1449 | |
1450 | =item panic: INTERPCONCAT |
1451 | |
1452 | (P) The lexer got into a bad state parsing a string with brackets. |
1453 | |
1454 | =item panic: last |
1455 | |
1456 | (P) We popped the context stack to a block context, and then discovered |
1457 | it wasn't a block context. |
1458 | |
1459 | =item panic: leave_scope clearsv |
1460 | |
1461 | (P) A writable lexical variable became readonly somehow within the scope. |
1462 | |
1463 | =item panic: leave_scope inconsistency |
1464 | |
1465 | (P) The savestack probably got out of sync. At least, there was an |
1466 | invalid enum on the top of it. |
1467 | |
1468 | =item panic: malloc |
1469 | |
1470 | (P) Something requested a negative number of bytes of malloc. |
1471 | |
1472 | =item panic: mapstart |
1473 | |
1474 | (P) The compiler is screwed up with respect to the map() function. |
1475 | |
1476 | =item panic: null array |
1477 | |
1478 | (P) One of the internal array routines was passed a null AV pointer. |
1479 | |
1480 | =item panic: pad_alloc |
1481 | |
1482 | (P) The compiler got confused about which scratch pad it was allocating |
1483 | and freeing temporaries and lexicals from. |
1484 | |
1485 | =item panic: pad_free curpad |
1486 | |
1487 | (P) The compiler got confused about which scratch pad it was allocating |
1488 | and freeing temporaries and lexicals from. |
1489 | |
1490 | =item panic: pad_free po |
1491 | |
1492 | (P) An invalid scratch pad offset was detected internally. |
1493 | |
1494 | =item panic: pad_reset curpad |
1495 | |
1496 | (P) The compiler got confused about which scratch pad it was allocating |
1497 | and freeing temporaries and lexicals from. |
1498 | |
1499 | =item panic: pad_sv po |
1500 | |
1501 | (P) An invalid scratch pad offset was detected internally. |
1502 | |
1503 | =item panic: pad_swipe curpad |
1504 | |
1505 | (P) The compiler got confused about which scratch pad it was allocating |
1506 | and freeing temporaries and lexicals from. |
1507 | |
1508 | =item panic: pad_swipe po |
1509 | |
1510 | (P) An invalid scratch pad offset was detected internally. |
1511 | |
1512 | =item panic: pp_iter |
1513 | |
1514 | (P) The foreach iterator got called in a non-loop context frame. |
1515 | |
1516 | =item panic: realloc |
1517 | |
1518 | (P) Something requested a negative number of bytes of realloc. |
1519 | |
1520 | =item panic: restartop |
1521 | |
1522 | (P) Some internal routine requested a goto (or something like it), and |
1523 | didn't supply the destination. |
1524 | |
1525 | =item panic: return |
1526 | |
1527 | (P) We popped the context stack to a subroutine or eval context, and |
1528 | then discovered it wasn't a subroutine or eval context. |
1529 | |
1530 | =item panic: scan_num |
1531 | |
1532 | (P) scan_num() got called on something that wasn't a number. |
1533 | |
1534 | =item panic: sv_insert |
1535 | |
1536 | (P) The sv_insert() routine was told to remove more string than there |
1537 | was string. |
1538 | |
1539 | =item panic: top_env |
1540 | |
1541 | (P) The compiler attempted to do a goto, or something weird like that. |
1542 | |
1543 | =item panic: yylex |
1544 | |
1545 | (P) The lexer got into a bad state while processing a case modifier. |
1546 | |
1547 | =item Parens missing around "%s" list |
1548 | |
1549 | (W) You said something like |
1550 | |
1551 | my $foo, $bar = @_; |
1552 | |
1553 | when you meant |
1554 | |
1555 | my ($foo, $bar) = @_; |
1556 | |
1557 | Remember that "my" and "local" bind closer than comma. |
1558 | |
1559 | =item Perl %3.3f required--this is only version %s, stopped |
1560 | |
1561 | (F) The module in question uses features of a version of Perl more recent |
1562 | than the currently running version. How long has it been since you upgraded, |
1563 | anyway? See L<perlfunc/require>. |
1564 | |
1565 | =item Permission denied |
1566 | |
1567 | (F) The setuid emulator in suidperl decided you were up to no good. |
1568 | |
748a9306 |
1569 | =item pid %d not a child |
1570 | |
1571 | (W) A warning peculiar to VMS. Waitpid() was asked to wait for a process which |
1572 | isn't a subprocess of the current process. While this is fine from VMS' |
1573 | perspective, it's probably not what you intended. |
1574 | |
a0d0e21e |
1575 | =item POSIX getpgrp can't take an argument |
1576 | |
1577 | (F) Your C compiler uses POSIX getpgrp(), which takes no argument, unlike |
1578 | the BSD version, which takes a pid. |
1579 | |
1580 | =item Possible memory corruption: %s overflowed 3rd argument |
1581 | |
1582 | (F) An ioctl() or fcntl() returned more than Perl was bargaining for. |
1583 | Perl guesses a reasonable buffer size, but puts a sentinel byte at the |
1584 | end of the buffer just in case. This sentinel byte got clobbered, and |
1585 | Perl assumes that memory is now corrupted. See L<perlfunc/ioctl>. |
1586 | |
1587 | =item Precedence problem: open %s should be open(%s) |
1588 | |
1589 | (S) The old irregular construct |
cb1a09d0 |
1590 | |
a0d0e21e |
1591 | open FOO || die; |
1592 | |
1593 | is now misinterpreted as |
1594 | |
1595 | open(FOO || die); |
1596 | |
1597 | because of the strict regularization of Perl 5's grammar into unary and |
1598 | list operators. (The old open was a little of both.) You must put |
1599 | parens around the filehandle, or use the new "or" operator instead of "||". |
1600 | |
1601 | =item print on closed filehandle %s |
1602 | |
1603 | (W) The filehandle you're printing on got itself closed sometime before now. |
1604 | Check your logic flow. |
1605 | |
1606 | =item printf on closed filehandle %s |
1607 | |
1608 | (W) The filehandle you're writing to got itself closed sometime before now. |
1609 | Check your logic flow. |
1610 | |
1611 | =item Probable precedence problem on %s |
1612 | |
1613 | (W) The compiler found a bare word where it expected a conditional, |
1614 | which often indicates that an || or && was parsed as part of the |
1615 | last argument of the previous construct, for example: |
1616 | |
1617 | open FOO || die; |
1618 | |
4633a7c4 |
1619 | =item Prototype mismatch: (%s) vs (%s) |
1620 | |
1621 | (S) The subroutine being defined had a predeclared (forward) declaration |
1622 | with a different function prototype. |
1623 | |
a0d0e21e |
1624 | =item Read on closed filehandle <%s> |
1625 | |
1626 | (W) The filehandle you're reading from got itself closed sometime before now. |
1627 | Check your logic flow. |
1628 | |
1629 | =item Reallocation too large: %lx |
1630 | |
1631 | (F) You can't allocate more than 64K on an MSDOS machine. |
1632 | |
1633 | =item Recompile perl with B<-D>DEBUGGING to use B<-D> switch |
1634 | |
1635 | (F) You can't use the B<-D> option unless the code to produce the |
1636 | desired output is compiled into Perl, which entails some overhead, |
1637 | which is why it's currently left out of your copy. |
1638 | |
1639 | =item Recursive inheritance detected |
1640 | |
1641 | (F) More than 100 levels of inheritance were used. Probably indicates |
1642 | an unintended loop in your inheritance hierarchy. |
1643 | |
1644 | =item Reference miscount in sv_replace() |
1645 | |
1646 | (W) The internal sv_replace() function was handed a new SV with a |
1647 | reference count of other than 1. |
1648 | |
1649 | =item regexp memory corruption |
1650 | |
1651 | (P) The regular expression engine got confused by what the regular |
1652 | expression compiler gave it. |
1653 | |
1654 | =item regexp out of space |
1655 | |
1656 | (P) A "can't happen" error, because safemalloc() should have caught it earlier. |
1657 | |
1658 | =item regexp too big |
1659 | |
1660 | (F) The current implementation of regular expression uses shorts as |
1661 | address offsets within a string. Unfortunately this means that if |
1662 | the regular expression compiles to longer than 32767, it'll blow up. |
1663 | Usually when you want a regular expression this big, there is a better |
1664 | way to do it with multiple statements. See L<perlre>. |
1665 | |
1666 | =item Reversed %s= operator |
1667 | |
1668 | (W) You wrote your assignment operator backwards. The = must always |
1669 | comes last, to avoid ambiguity with subsequent unary operators. |
1670 | |
1671 | =item Runaway format |
1672 | |
1673 | (F) Your format contained the ~~ repeat-until-blank sequence, but it |
1674 | produced 200 lines at once, and the 200th line looked exactly like the |
1675 | 199th line. Apparently you didn't arrange for the arguments to exhaust |
1676 | themselves, either by using ^ instead of @ (for scalar variables), or by |
1677 | shifting or popping (for array variables). See L<perlform>. |
1678 | |
1679 | =item Scalar value @%s[%s] better written as $%s[%s] |
1680 | |
1681 | (W) You've used an array slice (indicated by @) to select a single value of |
1682 | an array. Generally it's better to ask for a scalar value (indicated by $). |
1683 | The difference is that $foo[&bar] always behaves like a scalar, both when |
1684 | assigning to it and when evaluating its argument, while @foo[&bar] behaves |
1685 | like a list when you assign to it, and provides a list context to its |
1686 | subscript, which can do weird things if you're only expecting one subscript. |
1687 | |
748a9306 |
1688 | On the other hand, if you were actually hoping to treat the array |
1689 | element as a list, you need to look into how references work, since |
1690 | Perl will not magically convert between scalars and lists for you. See |
1691 | L<perlref>. |
1692 | |
a0d0e21e |
1693 | =item Script is not setuid/setgid in suidperl |
1694 | |
1695 | (F) Oddly, the suidperl program was invoked on a script with its setuid |
1696 | or setgid bit set. This doesn't make much sense. |
1697 | |
1698 | =item Search pattern not terminated |
1699 | |
1700 | (F) The lexer couldn't find the final delimiter of a // or m{} |
1701 | construct. Remember that bracketing delimiters count nesting level. |
1702 | |
1703 | =item seek() on unopened file |
1704 | |
1705 | (W) You tried to use the seek() function on a filehandle that was either |
1706 | never opened or has been closed since. |
1707 | |
1708 | =item select not implemented |
1709 | |
1710 | (F) This machine doesn't implement the select() system call. |
1711 | |
1712 | =item sem%s not implemented |
1713 | |
1714 | (F) You don't have System V semaphore IPC on your system. |
1715 | |
1716 | =item semi-panic: attempt to dup freed string |
1717 | |
1718 | (S) The internal newSVsv() routine was called to duplicate a scalar |
1719 | that had previously been marked as free. |
1720 | |
1721 | =item Semicolon seems to be missing |
1722 | |
1723 | (W) A nearby syntax error was probably caused by a missing semicolon, |
1724 | or possibly some other missing operator, such as a comma. |
1725 | |
1726 | =item Send on closed socket |
1727 | |
1728 | (W) The filehandle you're sending to got itself closed sometime before now. |
1729 | Check your logic flow. |
1730 | |
1731 | =item Sequence (?#... not terminated |
1732 | |
1733 | (F) A regular expression comment must be terminated by a closing |
1734 | parenthesis. Embedded parens aren't allowed. See L<perlre>. |
1735 | |
1736 | =item Sequence (?%s...) not implemented |
1737 | |
1738 | (F) A proposed regular expression extension has the character reserved |
1739 | but has not yet been written. See L<perlre>. |
1740 | |
1741 | =item Sequence (?%s...) not recognized |
1742 | |
1743 | (F) You used a regular expression extension that doesn't make sense. |
1744 | See L<perlre>. |
1745 | |
1746 | =item setegid() not implemented |
1747 | |
1748 | (F) You tried to assign to $), and your operating system doesn't support |
1749 | the setegid() system call (or equivalent), or at least Configure didn't |
1750 | think so. |
1751 | |
1752 | =item seteuid() not implemented |
1753 | |
1754 | (F) You tried to assign to $>, and your operating system doesn't support |
1755 | the seteuid() system call (or equivalent), or at least Configure didn't |
1756 | think so. |
1757 | |
1758 | =item setrgid() not implemented |
1759 | |
1760 | (F) You tried to assign to $(, and your operating system doesn't support |
1761 | the setrgid() system call (or equivalent), or at least Configure didn't |
1762 | think so. |
1763 | |
1764 | =item setruid() not implemented |
1765 | |
1766 | (F) You tried to assign to $<, and your operating system doesn't support |
1767 | the setruid() system call (or equivalent), or at least Configure didn't |
1768 | think so. |
1769 | |
1770 | =item Setuid/gid script is writable by world |
1771 | |
1772 | (F) The setuid emulator won't run a script that is writable by the world, |
1773 | because the world might have written on it already. |
1774 | |
1775 | =item shm%s not implemented |
1776 | |
1777 | (F) You don't have System V shared memory IPC on your system. |
1778 | |
1779 | =item shutdown() on closed fd |
1780 | |
1781 | (W) You tried to do a shutdown on a closed socket. Seems a bit superfluous. |
1782 | |
1783 | =item SIG%s handler "%s" not defined. |
1784 | |
1785 | (W) The signal handler named in %SIG doesn't, in fact, exist. Perhaps you |
1786 | put it into the wrong package? |
1787 | |
1788 | =item sort is now a reserved word |
1789 | |
1790 | (F) An ancient error message that almost nobody ever runs into anymore. |
1791 | But before sort was a keyword, people sometimes used it as a filehandle. |
1792 | |
1793 | =item Sort subroutine didn't return a numeric value |
1794 | |
1795 | (F) A sort comparison routine must return a number. You probably blew |
4633a7c4 |
1796 | it by not using C<E<lt>=E<gt>> or C<cmp>, or by not using them correctly. |
a0d0e21e |
1797 | See L<perlfunc/sort>. |
1798 | |
1799 | =item Sort subroutine didn't return single value |
1800 | |
1801 | (F) A sort comparison subroutine may not return a list value with more |
1802 | or less than one element. See L<perlfunc/sort>. |
1803 | |
1804 | =item Split loop |
1805 | |
1806 | (P) The split was looping infinitely. (Obviously, a split shouldn't iterate |
1807 | more times than there are characters of input, which is what happened.) |
1808 | See L<perlfunc/split>. |
1809 | |
1810 | =item Stat on unopened file <%s> |
1811 | |
1812 | (W) You tried to use the stat() function (or an equivalent file test) |
1813 | on a filehandle that was either never opened or has been closed since. |
1814 | |
1815 | =item Statement unlikely to be reached |
1816 | |
1817 | (W) You did an exec() with some statement after it other than a die(). |
1818 | This is almost always an error, because exec() never returns unless |
1819 | there was a failure. You probably wanted to use system() instead, |
1820 | which does return. To suppress this warning, put the exec() in a block |
1821 | by itself. |
1822 | |
1823 | =item Subroutine %s redefined |
1824 | |
1825 | (W) You redefined a subroutine. To suppress this warning, say |
1826 | |
1827 | { |
1828 | local $^W = 0; |
1829 | eval "sub name { ... }"; |
1830 | } |
1831 | |
1832 | =item Substitution loop |
1833 | |
1834 | (P) The substitution was looping infinitely. (Obviously, a |
1835 | substitution shouldn't iterate more times than there are characters of |
1836 | input, which is what happened.) See the discussion of substitution in |
1837 | L<perlop/"Quote and Quotelike Operators">. |
1838 | |
1839 | =item Substitution pattern not terminated |
1840 | |
1841 | (F) The lexer couldn't find the interior delimiter of a s/// or s{}{} |
1842 | construct. Remember that bracketing delimiters count nesting level. |
1843 | |
1844 | =item Substitution replacement not terminated |
1845 | |
1846 | (F) The lexer couldn't find the final delimiter of a s/// or s{}{} |
1847 | construct. Remember that bracketing delimiters count nesting level. |
1848 | |
1849 | =item substr outside of string |
1850 | |
1851 | (W) You tried to reference a substr() that pointed outside of a string. |
1852 | That is, the absolute value of the offset was larger than the length of |
1853 | the string. See L<perlfunc/substr>. |
1854 | |
1855 | =item suidperl is no longer needed since... |
1856 | |
1857 | (F) Your Perl was compiled with B<-D>SETUID_SCRIPTS_ARE_SECURE_NOW, but a |
1858 | version of the setuid emulator somehow got run anyway. |
1859 | |
1860 | =item syntax error |
1861 | |
1862 | (F) Probably means you had a syntax error. Common reasons include: |
1863 | |
1864 | A keyword is misspelled. |
1865 | A semicolon is missing. |
1866 | A comma is missing. |
1867 | An opening or closing parenthesis is missing. |
1868 | An opening or closing brace is missing. |
1869 | A closing quote is missing. |
1870 | |
1871 | Often there will be another error message associated with the syntax |
1872 | error giving more information. (Sometimes it helps to turn on B<-w>.) |
1873 | The error message itself often tells you where it was in the line when |
1874 | it decided to give up. Sometimes the actual error is several tokens |
1875 | before this, since Perl is good at understanding random input. |
1876 | Occasionally the line number may be misleading, and once in a blue moon |
1877 | the only way to figure out what's triggering the error is to call |
1878 | C<perl -c> repeatedly, chopping away half the program each time to see |
1879 | if the error went away. Sort of the cybernetic version of S<20 questions>. |
1880 | |
cb1a09d0 |
1881 | =item syntax error at line %d: `%s' unexpected |
1882 | |
1883 | (A) You've accidentally run your script through the Bourne shell |
1884 | instead of Perl. Check the <#!> line, or manually feed your script |
1885 | into Perl yourself. |
1886 | |
a0d0e21e |
1887 | =item System V IPC is not implemented on this machine |
1888 | |
1889 | (F) You tried to do something with a function beginning with "sem", "shm" |
1890 | or "msg". See L<perlfunc/semctl>, for example. |
1891 | |
1892 | =item Syswrite on closed filehandle |
1893 | |
1894 | (W) The filehandle you're writing to got itself closed sometime before now. |
1895 | Check your logic flow. |
1896 | |
1897 | =item tell() on unopened file |
1898 | |
1899 | (W) You tried to use the tell() function on a filehandle that was either |
1900 | never opened or has been closed since. |
1901 | |
1902 | =item Test on unopened file <%s> |
1903 | |
1904 | (W) You tried to invoke a file test operator on a filehandle that isn't |
1905 | open. Check your logic. See also L<perlfunc/-X>. |
1906 | |
1907 | =item That use of $[ is unsupported |
1908 | |
1909 | (F) Assignment to $[ is now strictly circumscribed, and interpreted as |
1910 | a compiler directive. You may only say one of |
1911 | |
1912 | $[ = 0; |
1913 | $[ = 1; |
1914 | ... |
1915 | local $[ = 0; |
1916 | local $[ = 1; |
1917 | ... |
1918 | |
1919 | This is to prevent the problem of one module changing the array base |
1920 | out from under another module inadvertently. See L<perlvar/$[>. |
1921 | |
1922 | =item The %s function is unimplemented |
1923 | |
1924 | The function indicated isn't implemented on this architecture, according |
1925 | to the probings of Configure. |
1926 | |
1927 | =item The crypt() function is unimplemented due to excessive paranoia. |
1928 | |
1929 | (F) Configure couldn't find the crypt() function on your machine, |
1930 | probably because your vendor didn't supply it, probably because they |
1931 | think the U.S. Govermnment thinks it's a secret, or at least that they |
1932 | will continue to pretend that it is. And if you quote me on that, I |
1933 | will deny it. |
1934 | |
1935 | =item The stat preceding C<-l _> wasn't an lstat |
1936 | |
1937 | (F) It makes no sense to test the current stat buffer for symbolic linkhood |
1938 | if the last stat that wrote to the stat buffer already went past |
1939 | the symlink to get to the real file. Use an actual filename instead. |
1940 | |
1941 | =item times not implemented |
1942 | |
1943 | (F) Your version of the C library apparently doesn't do times(). I suspect |
1944 | you're not running on Unix. |
1945 | |
1946 | =item Too few args to syscall |
1947 | |
1948 | (F) There has to be at least one argument to syscall() to specify the |
1949 | system call to call, silly dilly. |
1950 | |
cb1a09d0 |
1951 | =item Too many ('s |
1952 | |
1953 | =item Too many )'s |
1954 | |
1955 | (A) You've accidentally run your script through B<csh> instead |
1956 | of Perl. Check the <#!> line, or manually feed your script |
1957 | into Perl yourself. |
1958 | |
a0d0e21e |
1959 | =item Too many args to syscall |
1960 | |
1961 | (F) Perl only supports a maximum of 14 args to syscall(). |
1962 | |
1963 | =item Too many arguments for %s |
1964 | |
1965 | (F) The function requires fewer arguments than you specified. |
1966 | |
1967 | =item trailing \ in regexp |
1968 | |
1969 | (F) The regular expression ends with an unbackslashed backslash. Backslash |
1970 | it. See L<perlre>. |
1971 | |
1972 | =item Translation pattern not terminated |
1973 | |
1974 | (F) The lexer couldn't find the interior delimiter of a tr/// or tr[][] |
1975 | construct. |
1976 | |
1977 | =item Translation replacement not terminated |
1978 | |
1979 | (F) The lexer couldn't find the final delimiter of a tr/// or tr[][] |
1980 | construct. |
1981 | |
1982 | =item truncate not implemented |
1983 | |
1984 | (F) Your machine doesn't implement a file truncation mechanism that |
1985 | Configure knows about. |
1986 | |
1987 | =item Type of arg %d to %s must be %s (not %s) |
1988 | |
1989 | (F) This function requires the argument in that position to be of a |
1990 | certain type. Arrays must be @NAME or @{EXPR}. Hashes must be |
1991 | %NAME or %{EXPR}. No implicit dereferencing is allowed--use the |
1992 | {EXPR} forms as an explicit dereference. See L<perlref>. |
1993 | |
1994 | =item umask: argument is missing initial 0 |
1995 | |
1996 | (W) A umask of 222 is incorrect. It should be 0222, since octal literals |
1997 | always start with 0 in Perl, as in C. |
1998 | |
4633a7c4 |
1999 | =item Unable to create sub named "%s" |
2000 | |
2001 | (F) You attempted to create or access a subroutine with an illegal name. |
2002 | |
a0d0e21e |
2003 | =item Unbalanced context: %d more PUSHes than POPs |
2004 | |
2005 | (W) The exit code detected an internal inconsistency in how many execution |
2006 | contexts were entered and left. |
2007 | |
2008 | =item Unbalanced saves: %d more saves than restores |
2009 | |
2010 | (W) The exit code detected an internal inconsistency in how many |
2011 | values were temporarily localized. |
2012 | |
2013 | =item Unbalanced scopes: %d more ENTERs than LEAVEs |
2014 | |
2015 | (W) The exit code detected an internal inconsistency in how many blocks |
2016 | were entered and left. |
2017 | |
2018 | =item Unbalanced tmps: %d more allocs than frees |
2019 | |
2020 | (W) The exit code detected an internal inconsistency in how many mortal |
2021 | scalars were allocated and freed. |
2022 | |
2023 | =item Undefined format "%s" called |
2024 | |
2025 | (F) The format indicated doesn't seem to exist. Perhaps it's really in |
2026 | another package? See L<perlform>. |
2027 | |
2028 | =item Undefined sort subroutine "%s" called |
2029 | |
2030 | (F) The sort comparison routine specified doesn't seem to exist. Perhaps |
2031 | it's in a different package? See L<perlfunc/sort>. |
2032 | |
2033 | =item Undefined subroutine &%s called |
2034 | |
2035 | (F) The subroutine indicated hasn't been defined, or if it was, it |
2036 | has since been undefined. |
2037 | |
2038 | =item Undefined subroutine called |
2039 | |
2040 | (F) The anonymous subroutine you're trying to call hasn't been defined, |
2041 | or if it was, it has since been undefined. |
2042 | |
2043 | =item Undefined subroutine in sort |
2044 | |
2045 | (F) The sort comparison routine specified is declared but doesn't seem to |
2046 | have been defined yet. See L<perlfunc/sort>. |
2047 | |
4633a7c4 |
2048 | =item Undefined top format "%s" called |
2049 | |
2050 | (F) The format indicated doesn't seem to exist. Perhaps it's really in |
2051 | another package? See L<perlform>. |
2052 | |
a0d0e21e |
2053 | =item unexec of %s into %s failed! |
2054 | |
2055 | (F) The unexec() routine failed for some reason. See your local FSF |
2056 | representative, who probably put it there in the first place. |
2057 | |
2058 | =item Unknown BYTEORDER |
2059 | |
2060 | (F) There are no byteswapping functions for a machine with this byte order. |
2061 | |
2062 | =item unmatched () in regexp |
2063 | |
2064 | (F) Unbackslashed parentheses must always be balanced in regular |
2065 | expressions. If you're a vi user, the % key is valuable for finding |
2066 | the matching paren. See L<perlre>. |
2067 | |
2068 | =item Unmatched right bracket |
2069 | |
2070 | (F) The lexer counted more closing curly brackets (braces) than opening |
2071 | ones, so you're probably missing an opening bracket. As a general |
2072 | rule, you'll find the missing one (so to speak) near the place you were |
2073 | last editing. |
2074 | |
2075 | =item unmatched [] in regexp |
2076 | |
2077 | (F) The brackets around a character class must match. If you wish to |
2078 | include a closing bracket in a character class, backslash it or put it first. |
2079 | See L<perlre>. |
2080 | |
2081 | =item Unquoted string "%s" may clash with future reserved word |
2082 | |
2083 | (W) You used a bare word that might someday be claimed as a reserved word. |
2084 | It's best to put such a word in quotes, or capitalize it somehow, or insert |
2085 | an underbar into it. You might also declare it as a subroutine. |
2086 | |
2087 | =item Unrecognized character \%03o ignored |
2088 | |
2089 | (S) A garbage character was found in the input, and ignored, in case it's |
2090 | a weird control character on an EBCDIC machine, or some such. |
2091 | |
2092 | =item Unrecognized signal name "%s" |
2093 | |
2094 | (F) You specified a signal name to the kill() function that was not recognized. |
2095 | Say C<kill -l> in your shell to see the valid signal names on your system. |
2096 | |
2097 | =item Unrecognized switch: -%s |
2098 | |
2099 | (F) You specified an illegal option to Perl. Don't do that. |
2100 | (If you think you didn't do that, check the #! line to see if it's |
2101 | supplying the bad switch on your behalf.) |
2102 | |
2103 | =item Unsuccessful %s on filename containing newline |
2104 | |
2105 | (W) A file operation was attempted on a filename, and that operation |
2106 | failed, PROBABLY because the filename contained a newline, PROBABLY |
2107 | because you forgot to chop() or chomp() it off. See L<perlfunc/chop>. |
2108 | |
2109 | =item Unsupported directory function "%s" called |
2110 | |
2111 | (F) Your machine doesn't support opendir() and readdir(). |
2112 | |
2113 | =item Unsupported function %s |
2114 | |
2115 | (F) This machines doesn't implement the indicated function, apparently. |
2116 | At least, Configure doesn't think so. |
2117 | |
2118 | =item Unsupported socket function "%s" called |
2119 | |
2120 | (F) Your machine doesn't support the Berkeley socket mechanism, or at |
2121 | least that's what Configure thought. |
2122 | |
2123 | =item Unterminated <> operator |
2124 | |
2125 | (F) The lexer saw a left angle bracket in a place where it was expecting |
2126 | a term, so it's looking for the corresponding right angle bracket, and not |
2127 | finding it. Chances are you left some needed parentheses out earlier in |
2128 | the line, and you really meant a "less than". |
2129 | |
2130 | =item Use of $# is deprecated |
2131 | |
2132 | (D) This was an ill-advised attempt to emulate a poorly defined awk feature. |
2133 | Use an explicit printf() or sprintf() instead. |
2134 | |
2135 | =item Use of $* is deprecated |
2136 | |
2137 | (D) This variable magically turned on multiline pattern matching, both for |
2138 | you and for any luckless subroutine that you happen to call. You should |
2139 | use the new C<//m> and C<//s> modifiers now to do that without the dangerous |
2140 | action-at-a-distance effects of C<$*>. |
2141 | |
748a9306 |
2142 | =item Use of %s in printf format not supported |
2143 | |
2144 | (F) You attempted to use a feature of printf that is accessible only |
2145 | from C. This usually means there's a better way to do it in Perl. |
2146 | |
a0d0e21e |
2147 | =item Use of %s is deprecated |
2148 | |
2149 | (D) The construct indicated is no longer recommended for use, generally |
2150 | because there's a better way to do it, and also because the old way has |
2151 | bad side effects. |
2152 | |
4633a7c4 |
2153 | =item Use of bare << to mean <<"" is deprecated |
2154 | |
2155 | (D) You are now encouraged to use the explicitly quoted form if you |
2156 | wish to use a blank line as the terminator of the here-document. |
2157 | |
a0d0e21e |
2158 | =item Use of implicit split to @_ is deprecated |
2159 | |
2160 | (D) It makes a lot of work for the compiler when you clobber a |
2161 | subroutine's argument list, so it's better if you assign the results of |
2162 | a split() explicitly to an array (or list). |
2163 | |
2164 | =item Use of uninitialized value |
2165 | |
2166 | (W) An undefined value was used as if it were already defined. It was |
2167 | interpreted as a "" or a 0, but maybe it was a mistake. To suppress this |
2168 | warning assign an initial value to your variables. |
2169 | |
2170 | =item Useless use of %s in void context |
2171 | |
2172 | (W) You did something without a side effect in a context that does nothing |
2173 | with the return value, such as a statement that doesn't return a value |
2174 | from a block, or the left side of a scalar comma operator. Very often |
2175 | this points not to stupidity on your part, but a failure of Perl to parse |
2176 | your program the way you thought it would. For example, you'd get this |
2177 | if you mixed up your C precedence with Python precedence and said |
2178 | |
2179 | $one, $two = 1, 2; |
2180 | |
2181 | when you meant to say |
2182 | |
2183 | ($one, $two) = (1, 2); |
2184 | |
748a9306 |
2185 | Another common error is to use ordinary parentheses to construct a list |
2186 | reference when you should be using square or curly brackets, for |
2187 | example, if you say |
2188 | |
2189 | $array = (1,2); |
2190 | |
2191 | when you should have said |
2192 | |
2193 | $array = [1,2]; |
2194 | |
2195 | The square brackets explicitly turn a list value into a scalar value, |
2196 | while parentheses do not. So when a parenthesized list is evaluated in |
2197 | a scalar context, the comma is treated like C's comma operator, which |
2198 | throws away the left argument, which is not what you want. See |
2199 | L<perlref> for more on this. |
2200 | |
4633a7c4 |
2201 | =item Variable "%s" is not exported |
2202 | |
2203 | (F) While "use strict" in effect, you referred to a global variable |
2204 | that you apparently thought was imported from another module, because |
2205 | something else of the same name (usually a subroutine) is exported |
2206 | by that module. It usually means you put the wrong funny character |
2207 | on the front of your variable. |
2208 | |
cb1a09d0 |
2209 | =item Variable syntax. |
2210 | |
2211 | (A) You've accidentally run your script through B<csh> instead |
2212 | of Perl. Check the <#!> line, or manually feed your script |
2213 | into Perl yourself. |
2214 | |
a0d0e21e |
2215 | =item Warning: unable to close filehandle %s properly. |
2216 | |
2217 | (S) The implicit close() done by an open() got an error indication on the |
2218 | close(0. This usually indicates your filesystem ran out of disk space. |
2219 | |
2220 | =item Warning: Use of "%s" without parens is ambiguous |
2221 | |
2222 | (S) You wrote a unary operator followed by something that looks like a |
2223 | binary operator that could also have been interpreted as a term or |
2224 | unary operator. For instance, if you know that the rand function |
2225 | has a default argument of 1.0, and you write |
2226 | |
2227 | rand + 5; |
2228 | |
2229 | you may THINK you wrote the same thing as |
2230 | |
2231 | rand() + 5; |
2232 | |
2233 | but in actual fact, you got |
2234 | |
2235 | rand(+5); |
2236 | |
2237 | So put in parens to say what you really mean. |
2238 | |
2239 | =item Write on closed filehandle |
2240 | |
2241 | (W) The filehandle you're writing to got itself closed sometime before now. |
2242 | Check your logic flow. |
2243 | |
2244 | =item X outside of string |
2245 | |
2246 | (F) You had a pack template that specified a relative position before |
2247 | the beginning of the string being unpacked. See L<perlfunc/pack>. |
2248 | |
2249 | =item x outside of string |
2250 | |
2251 | (F) You had a pack template that specified a relative position after |
2252 | the end of the string being unpacked. See L<perlfunc/pack>. |
2253 | |
2254 | =item Xsub "%s" called in sort |
2255 | |
2256 | (F) The use of an external subroutine as a sort comparison is not yet supported. |
2257 | |
2258 | =item Xsub called in sort |
2259 | |
2260 | (F) The use of an external subroutine as a sort comparison is not yet supported. |
2261 | |
2262 | =item You can't use C<-l> on a filehandle |
2263 | |
2264 | (F) A filehandle represents an opened file, and when you opened the file it |
2265 | already went past any symlink you are presumably trying to look for. |
2266 | Use a filename instead. |
2267 | |
2268 | =item YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET! |
2269 | |
2270 | (F) And you probably never will, since you probably don't have the |
2271 | sources to your kernel, and your vendor probably doesn't give a rip |
2272 | about what you want. Your best bet is to use the wrapsuid script in |
2273 | the eg directory to put a setuid C wrapper around your script. |
2274 | |
2275 | =item You need to quote "%s" |
2276 | |
2277 | (W) You assigned a bareword as a signal handler name. Unfortunately, you |
2278 | already have a subroutine of that name declared, which means that Perl 5 |
2279 | will try to call the subroutine when the assignment is executed, which is |
2280 | probably not what you want. (If it IS what you want, put an & in front.) |
2281 | |
2282 | =item [gs]etsockopt() on closed fd |
2283 | |
2284 | (W) You tried to get or set a socket option on a closed socket. |
2285 | Did you forget to check the return value of your socket() call? |
2286 | See L<perlfunc/getsockopt>. |
2287 | |
2288 | =item \1 better written as $1 |
2289 | |
2290 | (W) Outside of patterns, backreferences live on as variables. The use |
2291 | of backslashes is grandfathered on the righthand side of a |
2292 | substitution, but stylistically it's better to use the variable form |
2293 | because other Perl programmers will expect it, and it works better |
2294 | if there are more than 9 backreferences. |
2295 | |
748a9306 |
2296 | =item '|' and '<' may not both be specified on command line |
2297 | |
2298 | (F) An error peculiar to VMS. Perl does its own command line redirection, and |
2299 | found that STDIN was a pipe, and that you also tried to redirect STDIN using |
2300 | '<'. Only one STDIN stream to a customer, please. |
2301 | |
2302 | =item '|' and '>' may not both be specified on command line |
2303 | |
2304 | (F) An error peculiar to VMS. Perl does its own command line redirection, and |
2305 | thinks you tried to redirect stdout both to a file and into a pipe to another |
2306 | command. You need to choose one or the other, though nothing's stopping you |
2307 | from piping into a program or Perl script which 'splits' output into two |
2308 | streams, such as |
2309 | |
2310 | open(OUT,">$ARGV[0]") or die "Can't write to $ARGV[0]: $!"; |
2311 | while (<STDIN>) { |
2312 | print; |
2313 | print OUT; |
2314 | } |
2315 | close OUT; |
2316 | |
a0d0e21e |
2317 | =back |
2318 | |