Sorry to resurrect this post, but I cannot find the Namespace entry for "transaction" in my components.xml file. This line: <transaction:entity-transaction entity-manager="#{entityManager}" /> Gives me this error: The prefix "transaction" for element "transaction:entity-transaction" is not bound Does anyone know the transaction: namespace entry for the top of my components.xml file? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4098517#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...