Satya Dhanushkodi [https://community.jboss.org/people/satyand] created the discussion "errors when starting up jbpm 5.4-SNAPSHOT release" To view the discussion, visit: https://community.jboss.org/message/757362#757362 -------------------------------------------------------------- I am getting the attached errors when deploying jbpm 5-4-SNAPSHOT and guvnor-distribution-wars-5.5.0-SNAPSHOT. I was trying to get around some of the issues related to userid and groupid in human-task-war by working with the snapshots. Although at the startup, most of the errors are warnings about janino compiler or jaxb classes missing, ultimately when I try to import the "Employee Evaluation" example in guvnor and try to start the process, I am seeing the following message: 11:34:06,292 SEVERE [org.jboss.resteasy.core.SynchronousDispatcher] (http-localhost-127.0.0.1-8080-10) failed to execute: javax.ws.rs.WebApplicationException at org.drools.guvnor.server.jaxrs.PackageResource.getAssetAsAtom(PackageResource.java:525) [guvnor-webapp-core-5.5.0-SNAPSHOT.jar:] at org.drools.guvnor.server.jaxrs.PackageResource$Proxy$_$$_WeldClientProxy.getAssetAsAtom(PackageResource$Proxy$_$$_WeldClientProxy.java) [guvnor-webapp-core-5.5.0-SNAPSHOT.jar:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_05] The process starts up - but the process form does not show up. In addition, I see the following when jbpm-console starts and attempts to read from guvnor. 11:29:51,931 ERROR [stderr] (http-localhost-127.0.0.1-8080-6) Caused by: java.io.InvalidClassException: org.drools.rule.MVELDialectRuntimeData; local class incompatible: stream classdesc serialVersionUID = 5166066541265170937, local class serialVersionUID = -2603821288794910940 11:29:51,931 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)  at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:562) 11:29:51,931 ERROR [stderr] (http-localhost-127.0.0.1-8080-6)  at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583) I tried ensuring that the same version of drools-core is in both guvnor and jbpm-console - still same error. Any ideas on what could be going wrong? Thanks, Satya -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/757362#757362] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]