Problem solved and processdefinition.xml recovery. For some reason, an empty transition was inserted into a node. | <task-node name="DBA Implementa Alteracoes no Banco"> | <task name="Implementar alteracoes no banco de dados" swimlane="DBA"></task> | <transition to=""></transition> | </task-node> | I just removed it and everything came back to normality. thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167436#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...