package Moose::Exception::CannotMakeMetaclassCompatible; our $VERSION = '2.2010'; use Moose; extends 'Moose::Exception'; with 'Moose::Exception::Role::Class'; has 'superclass_name' => ( is => 'ro', isa => 'Str', required => 1 ); sub _build_message { my $self = shift; my $class_name = $self->class_name; my $superclass = $self->superclass_name; return "Can't make $class_name compatible with metaclass $superclass"; } __PACKAGE__->meta->make_immutable; 1;