I have tried in jBPM 3.2.GA, and i have received the same exception. The process goes to process instances, but when i try to view the process instace task, i get the error message. In Beta1 works everything fine, the problems cames first with Beta2. How could I check, that you said?:anonymous wrote : | could it be the server is trying to retrieve an xsd from an external location and it is not allowed to do that? | It's freaky, that I get an error message, when i use an original jbpm pack, what i didn't modified and many of my friends use the same pack without errors. Thank You! Regards. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4029326#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...