I have also just tried jbpm-jpdl-designer-3.1.0.beta2.zip with Eclipse 3.2.1 and it doesn't work either. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4069185#4069185 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4069185