Hi John, AFAIK you need both client (i.e. your IDE) and server versions of Guvnor to be the same.
If you are trying to load a package from an existing (5.0.1) Guvnor repositoty I believe you will need to re-compile\re-package the binaries as a number of SerialVersionIds changed. It wasn't clear from your email whether this is what you have set-up. Happy New Year! Mike 2011/1/4 John Peterson <john.peterson.g...@statefarm.com> > This is sort of a repost of an error I’ve been getting, but I thought > with the new year, I’d give it another shot. > > I’ve been getting the following exception in my code: > > [2010:12:361 09:12:910:debug] KnowledgeAgent rebuilding KnowledgeBase using > ChangeSet > > [2010:12:361 09:12:972:exception] > > ***java.lang.RuntimeException*: KnowledgeAgent exception while trying to > deserialize KnowledgeDefinitionsPackage > > atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*** > KnowledgeAgentImpl.java:664*) > > atorg.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(* > **KnowledgeAgentImpl.java:889*) > > at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(*** > KnowledgeAgentImpl.java:704*) > > at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(*** > KnowledgeAgentImpl.java:584*) > > at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(*** > KnowledgeAgentImpl.java:185*) > > at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(*** > KnowledgeAgentImpl.java:168*) > > at com.agencyawards2.RuleSessionProviderFactory.getSessionFactory( > ***RuleSessionProviderFactory.java:95*) > > at com.agencyawards2.RuleSessionProviderFactory.getProvider(*** > RuleSessionProviderFactory.java:35*) > > at com.agencyawards2.RunRules.runRules(***RunRules.java:27*) > > at com.agencyawards2.DroolsTest.main(***DroolsTest.java:40*) > > Caused by:*** java.io.StreamCorruptedException*: invalid stream > header:7061636B > > at java.io.ObjectInputStream.readStreamHeader(Unknown Source) > > at java.io.ObjectInputStream.<init>(Unknown Source) > > at org.drools.common.DroolsObjectInputStream.<init>(*** > DroolsObjectInputStream.java:71*) > > at org.drools.core.util.DroolsStreamUtils.streamIn(*** > DroolsStreamUtils.java:205*) > > at org.drools.core.util.DroolsStreamUtils.streamIn(*** > DroolsStreamUtils.java:174*) > > atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*** > KnowledgeAgentImpl.java:653*) > > ... 9 more > > I’m running Drools 5.1.1 on my workstation in Eclipse. When I run it > against Guvnor locally using version 5.1.1 installed as the “Guvnor > Standalone” downloaded at the same time as Drools 5.1.1 was downloadedfrom > the JBoss.org site, it works fine. > > When I run it against the server, which was from the 5.0.1 “Guvnor > Standalone” installation, but I updated the drools-guvnor.war file to use > the new 5.1.1 version, I get the error listed above. Based on my research > into the “KnowledgeAgent exception while trying to deserialize > KnowledgeDefinitionsPackage” error, it seems to stem from an > incompatibility between versions of Drools. > > Do I need to install the 5.1.1 Guvnor Standalone to my server to bring the > versions into synch, or am I experiencing some other sort of problem? > > > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > >
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