Your client Drools version does need to be in sync with the Guvnor version.
Unless the serialVersionUID that is being shown in the stack trace is in your code. Steve On 8 Apr 2013, at 11:53, abhinay_agarwal <[email protected]> wrote: > M getting the following error when i try to connect to guvnor repository, is > this because of the jar conflict or the problem is something else ? > > Caused by: java.io.InvalidClassException: > org.drools.rule.constraint.MvelConstraint; local class incompatible: stream > classdesc serialVersionUID = 148857042101396396, local class > serialVersionUID = 8537626313322861096 > at java.io.ObjectStreamClass.initNonProxy(Unknown Source) > at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) > at java.io.ObjectInputStream.readClassDesc(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at java.util.ArrayList.readObject(Unknown Source) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at java.io.ObjectStreamClass.invokeReadObject(Unknown Source) > at java.io.ObjectInputStream.readSerialData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at org.drools.rule.Pattern.readExternal(Pattern.java:115) > at java.io.ObjectInputStream.readExternalData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at java.util.ArrayList.readObject(Unknown Source) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at java.io.ObjectStreamClass.invokeReadObject(Unknown Source) > at java.io.ObjectInputStream.readSerialData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at org.drools.rule.GroupElement.readExternal(GroupElement.java:63) > at java.io.ObjectInputStream.readExternalData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at org.drools.rule.Rule.readExternal(Rule.java:185) > at java.io.ObjectInputStream.readExternalData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at java.util.IdentityHashMap.readObject(Unknown Source) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at java.io.ObjectStreamClass.invokeReadObject(Unknown Source) > at java.io.ObjectInputStream.readSerialData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at > org.drools.rule.MVELDialectRuntimeData.readExternal(MVELDialectRuntimeData.java:90) > at java.io.ObjectInputStream.readExternalData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at java.util.HashMap.readObject(Unknown Source) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at java.io.ObjectStreamClass.invokeReadObject(Unknown Source) > at java.io.ObjectInputStream.readSerialData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at > org.drools.rule.DialectRuntimeRegistry.readExternal(DialectRuntimeRegistry.java:58) > at java.io.ObjectInputStream.readExternalData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at org.drools.rule.Package.readExternal(Package.java:208) > at java.io.ObjectInputStream.readExternalData(Unknown Source) > at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readArray(Unknown Source) > at java.io.ObjectInputStream.readObject0(Unknown Source) > at java.io.ObjectInputStream.readObject(Unknown Source) > at > org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:205) > at > org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189) > at > org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:769) > ... 7 more > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Error-using-5-5-1-built-with-5-5-0-Final-jars-tp4023247.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > [email protected] > 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