package Moose::Exception::CannotAssignValueToReadOnlyAccessor; our $VERSION = '2.2011'; use Moose; extends 'Moose::Exception'; with 'Moose::Exception::Role::Class', 'Moose::Exception::Role::EitherAttributeOrAttributeName'; has 'value' => ( is => 'ro', isa => 'Any', required => 1 ); sub _build_message { my $self = shift; "Cannot assign a value to a read-only accessor"; } __PACKAGE__->meta->make_immutable; 1;