I'd like to second that. Getting that "There should only be one Seam phase listener per application" is not really helpful, since jboss-seam.jar should be placed in the EAR, not in the WAR. So with more than one SEAM application on the server you get that message because of the UCL. Or is Seam only supporting the scoped deployment model on JBoss? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4095317#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...