StephenClouse/perl-mason-plugin-defaultfilter — pull request #2 by melo (2012-03-06 11:03:44+00:00)
Title: Added missing 'is' argument to 'default_filters' attribute 

Recent versions of Moose require a 'is' argument. The error message is this:

Attribute (default_filters) of class Moose::Meta::Class::__ANON__::SERIAL::4
has no associated methods (did you mean to provide an "is" argument?)