Can't use 'defined(@array)' (Maybe you should just omit the defined()?) at (#2) line 2842 Perl doesn't normally produce error messages where the filename is listed as (#2). Some possibilities for why this might be happening are:

some code is being read from a file literally called '(#2)';

A source file has a line directive which changes the reported filename:

# line 1234 "(#2)"
....
if (defined @a) {1; }
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You have a $SIG{__DIE__} which is in some way modifying the error message.

Dave.