package Moose::Exception::AddRoleTakesAMooseMetaRoleInstance; our $VERSION = '2.2010'; use Moose; extends 'Moose::Exception'; with 'Moose::Exception::Role::Class'; has 'role_to_be_added' => ( is => 'ro', isa => 'Any', required => 1, ); sub _build_message { "Roles must be instances of Moose::Meta::Role"; } __PACKAGE__->meta->make_immutable; 1;