package Moose::Exception::BothBuilderAndDefaultAreNotAllowed; our $VERSION = '2.2010'; use Moose; extends 'Moose::Exception'; with 'Moose::Exception::Role::ParamsHash'; has 'class' => ( is => 'ro', isa => 'Str', required => 1 ); sub _build_message { "Setting both default and builder is not allowed."; } __PACKAGE__->meta->make_immutable; 1;