#MRO.pm

package MRO;

use strict;
use warnings;


require Exporter;
@ISA	    = qw(Exporter);
@EXPORT_OK  = qw($MROParser_HEAD $MROParser_1A $MROParser_1B $MROParser_1C $MROParser_2A $MROParser_3A $MROParser_3B $MROParser_3C $MROParser_TRAILER);


#Script.pl

#!/usr/bin/perl

use strict;
use warnings;

use Dir::Self;
use lib __DIR__ . "/../../Libraries";
use Parser::MRO qw( $MROParser_2A );



Gives error
Global symbol "@ISA" requires explicit package name
Global symbol "@EXPORT_OK" requires explicit package name