HuiSheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "BPMN2.0 + jBPM4.3: org.jbpm.api.JbpmException: couldn't run script: null" To view the discussion, visit: http://community.jboss.org/message/549224#549224 -------------------------------------------------------------- Hi Marco, Currently, there were only tree types scripts could be supported by jbpm4.  They are juel, bsh and groovy.  If you want to use jruby in jbpm4,  please refer jbpm.default.scriptmanager.xml and register your own script language. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/549224#549224] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]