Thax Ales; Ok, I updated SD to use 3.1 version. JBoss starts up fine, but when I deploy the JBoss-Spring.ear file, I still get the same error. One thing I did, I changed the spring-pojo.spring to spring-pojo.jar. I should do that correct? I can deploy .war files with no problem. the application.xml file looks ok. I am just using the example from sourceforge.net 'Fixed Example' View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4225215#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...