Probably the swimlane with the name you use in your process definition is not defined.
Post your processdefinition so that we can have a look.
Regards,
Koen
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3998495#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...