#test.pl
use warnings;
use strict;
use Data::Dumper;

use lib 'E:/data/entwicklungsArena/perl/development/modules';
use Misc::Test ('test_function');

my $test = "Test";
print Dumper($test); #works, prints $VAR1='Test';
test_function; #fails, "undefined subroutine &Misc::Test::Dumper....."

##</code><code>##

#test.pm
use strict;
use warnings;
use Data::Dumper;

package Misc::Test;

use base 'Exporter';
our @EXPORT_OK = ('test_function');

my $test = "test";

sub test_function {
	print Dumper($test);
}