[jboss-user] [Security & JAAS/JBoss] - javax.ejb.EJBAccessException // PLEASE HELP

Hello can someone please help me understand the post of http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4074126#... I am having the same issue with Caused by: java.rmi.MarshalException: Failed to communicate. Problem during marshalling/unmarshalling; nested exception is: | java.io.InvalidClassException: javax.ejb.EJBAccessException; local class incompatible: stream classdesc serialVersionUID = -3982037377455977398, local class serialVersionUID = 4923220329322198628 I read the answer but I don't understand it. Does anyone know how to fix the error above ? Thank you very much for all of your help. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4143755#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...