Sorry, silly mistake. I didn't realize jboss-seam-ui.jar was not in the project. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4084255#4084255 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4084255