There is a problem described for roles, where an attribute defined by one role is used in another. The workaround given is to have the parent define a stub method with "sub METHOD {}" This doesn't work for MooseX::Role::Parameterized roles. In this case, even with the stub declred, there is still the error: Attribute (ATTR) of class CLASS has no associated methods (did you mean to provide an "is" argument?) I presume that this is related to the requirement in parameterized roles that method cannot be declare as sub's but must be declared using the "method" keyword. Is there a way to declare a stub method for parameterized roles? John Macdonald Software Engineer Ontario Institute for Cancer Research MaRS Centre 661 University Avenue Suite 510 Toronto, Ontario Canada M5G 0A3 Tel: Email: John.Macdonald@oicr.on.ca Toll-free: 1-866-678-6427 Twitter: @OICR_news www.oicr.on.ca<http://www.oicr.on.ca/> This message and any attachments may contain confidential and/or privileged information for the sole use of the intended recipient. Any review or distribution by anyone other than the person for whom it was originally intended is strictly prohibited. If you have received this message in error, please contact the sender and delete all copies. Opinions, conclusions or other information contained in this message may not be that of the organization.Thread Next