Hi, I've been trying to teach myself Moose today and am following a tutorial.
However, I've come across this error and can't find any explanation as to what it means:

Mouse does not export its sugar to the 'main' package.
Can't locate object method "new" via package "Mouse" at test.pl line 2
+2.
[download]

Heres the relevant code. Any pointers in the right direction appreciated!!!

package Animal;

use Moose::Role;


has 'name' => (is => 'rw');
has 'color' => (is => 'rw', default => sub { shift->default_colour });

requires 'default_colour';


sub speak
{
    my $self = shift;
    print $self->name, " goes ", $self->sound, "\n";
}

# sub sound { confess shift, " should have defined sound!"; }

requires 'sound';

no Moose::Role;


1;
[download]

package Mouse;

use Moose;
with 'Animal';


sub default_colour { 'white'; }

sub sound { 'squeak'; }

after 'speak' => sub
{
    print "[but you can barely hear it!]\n";
};
no Moose;
1;
[download]

#!/usr/local/bin/perl -w

use strict;
use Moose;

use Animal;

use Horse;

use Sheep;

use Mouse;

my $talking = Horse->new(name => 'Mr. Ed');

$talking->speak; # says "Mr. Ed goes neigh"

my $baab = Sheep->new(colour => 'white', name => 'Baab');

$baab->speak; # prints "Baab goes baaaah"

my $mickey = Mouse->new(name => 'Mickey');
$mickey->speak;
[download]

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