is because you don't have read permission for a file which you named on
the command line.
+=item Can't open a reference
+
+(W io) You tried to open a scalar reference for reading or writing,
+using the 3-arg open() syntax :
+
+ open FH, '>', $ref;
+
+but your version of perl is compiled without perlio, and this form of
+open is not supported.
+
=item Can't open bidirectional pipe
(W pipe) You tried to say C<open(CMD, "|cmd|")>, which is not supported.
(F) There are no byte-swapping functions for a machine with this byte
order.
-=item Unknown discipline '%s'
-
-(F) You specified an unknown I/O discipline. See L<open> for valid
-filehandle disciplines and L<perlfunc/opendir> for valid directory
-handle disciplines.
-
=item Unknown "re" subpragma '%s' (known ones are: %s)
You tried to use an unknown subpragma of the "re" pragma.