Possibly a packaging issue, eg. you have too many facelets jars floating around. Something like that. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4010014#4010014 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4010014