| Parameter processInstance does not exist as a named parameter in [ | | delete from org.jbpm.scheduler.exe.Timer t | where t.processInstance = :processInstance | | ] | That means that the field processInstance doesn't exists in the Timer table in your persistence database. This may be cause of the use of and old version of jpdl or beacause your mapping are wrong.. check the hibernte.cfg.xml config file.. look for the Timer mappings.. and check the tables in your database. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4142940#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...