That particular message usually comes from using a sub designed to be used as an object method as a class method instead.
Quick demo:
use v5.10;
use strict;
use warnings;
{
package Local::Class;
sub new {
my $class = shift;
my %self = @_;
bless \%self => $class;
}
sub foo {
my $self = shift;
return $self->{foo};
}
}
my $object = Local::Class->new(foo => 42);
say $object->foo;
my $foo = Local::Class->foo;
So that's what that error message means. It's not especially Perl version dependent though, so I can't imagine upgrading to a newer version of Perl will fix this particular bug.
Though in general I'd always recommend running the latest stable version of Perl possible; currently 5.16.2.
package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name
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