Thank you PeterJ; I am trying to follow your instructions. I apologize for creating confusion but I am really new at JBoss and Seam and I don't really get the meaning of all those forums. On the other hand, I have exactly the same problem with JBoss developer environment and with JBoss tools with Eclipse while I am trying to create a Seam project: is it a problem with JBoss tools or is it a problem with seam? I hope I can get an answer to the problem that JBoss server doesn't start from JBoss developer environment in this forum (I can start it from the command line). I am going to post the problem of creating entity classes in a Seam forum. Again thank you View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4212241#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...