change name from "em" to "entityManager" I don't know why, but Seam hard codes to look for "entityManager" . View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4048047#4048047 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4048047