Same for me here. I'm using maven2 to build my application, but I took the seam jar files from 1.2.1.GA. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4053818#4053818 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4053818