For me this error diappeared when I put 'jboss-seam-booking/' in front of the jndiPattern That is the correct value for JBoss AS, but not for embeddable EJB3. (This is all in the Seam docs, of course.) But Mohammad says he is using embeddable EJB3. His problem is almost certainly that the EJB3 container did not start successfully, and he needs to post his logs. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978338#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...