Make sure the jsf-facelets jar is in your WEB-INF/lib and you are using the version of facelets that comes with Seam View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4027553#4027553 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4027553