"Global symbol "%s" requires explicit package name" Can you give me some tips on fixing that?
You have chopped off the last part of the error message and that was the bit which explains how you can fix it.
$ perl -Mstrict -e '%s = ();'
Global symbol "%s" requires explicit package name (did you forget to d
+eclare "my %s"?) at -e line 1.
Execution of -e aborted due to compilation errors.
$ perl -Mstrict -e 'my %s = ();'
$
See: my and our.
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