Maciej Swiderski [http://community.jboss.org/people/swiderski.maciej] replied to the discussion "JBPM 4.3 - org.jbpm.api.JbpmException: couldn't acquire block of ids" To view the discussion, visit: http://community.jboss.org/message/539230#539230 -------------------------------------------------------------- Hi, what does return following query on your data base:      select         propertyim0_.KEY_ as KEY1_6_,          propertyim0_.VERSION_ as VERSION2_6_,         propertyim0_.VALUE_ as  VALUE3_6_     from         JBPM4_PROPERTY propertyim0_ It should return two rows, one for db.version and second for next.dbid. If you don't have it I would recommend to drop your jbpm schema and create it once again. Please use ant tasks for that that are delivered with jBPM distribution. drop.jbpm.schema -Ddatabase=postgresql create.jbpm.schema -Ddatabase=postgresql create.jbpm.schema task will insert all required items into that table. HTH Maciej -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/539230#539230] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]