Seam now requires JSF 1.2, which MyFaces claims to now support (though I have not tested it). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4049163#4049163 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4049163