hey der ! m currently using GUVNOR v5.3.0 i made some DRLs in my Eclipse loaded them to Guvnor repository and after loads of changes..i was finally able to build my kbase using the repositoy.. my change set is as foolows : *<?xml version="1.0" encoding="UTF-8"?<change-set xmlns='http://drools.org/drools-5.0/change-set' xmlns:xs='http://www.w3.org/2001/XMLSchema-instance' xs:schemaLocation='http://drools.org/drools-5.0/change-set http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/... <add <resource source=' http://localhost:8089/drools-guvnor/org.drools.guvnor.Guvnor/package/Indi... type='DRL' / </add</change-set>* My package name was Individual and it mainly contained technical rule assests and one function, as shown in the image below : http://drools.46999.n3.nabble.com/file/n4018919/drools1.png now i had a few changes in my POJO model so i updated the model and few rules directly in the technical rule assest of guvnor, after which i built the package created a new snapshot and tried running it, but got some error, as : 1. Unable to Analyse Expression @Modify with($a){setExempt("Exempt Account"),setQueueName("Auto Classified Accounts")}; 2. KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage After going through all the available post, nothing proved to be of any help !! Then i thought might be changing the "technical assest" directly from guvnor is a bad idea... So, i created a new package named "Individual_New", uploaded the new POJO model and uploaded just one rule from ECLIPSE(just to check if my kbase builds or not).. I uploaded just 1 rule in it, build the package and created a snapshot with name LATEST, changed the change set as below: *<?xml version="1.0" encoding="UTF-8"?<change-set xmlns='http://drools.org/drools-5.0/change-set' xmlns:xs='http://www.w3.org/2001/XMLSchema-instance' xs:schemaLocation='http://drools.org/drools-5.0/change-set http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/... <add <resource source=' http://localhost:8089/drools-guvnor/org.drools.guvnor.Guvnor/package/Indi... type='DRL' / </add</change-set>* n now when i tried running it, it threw me the following error : java.lang.RuntimeException: java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8089/drools-guvnor/org.drools.guvnor.Guvnor/package/Indi... at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:592) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:701) at org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:679) at org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:979) at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:774) at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:646) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:192) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:174) at com.infy.fcs.drools.DroolsAdapter.readKnowledgeBase(DroolsAdapter.java:241) at com.infy.fcs.drools.DroolsAdapter.main(DroolsAdapter.java:256) Caused by: java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8089/drools-guvnor/org.drools.guvnor.Guvnor/package/Indi... at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) at org.drools.io.impl.UrlResource.grabStream(UrlResource.java:210) at org.drools.io.impl.UrlResource.getInputStream(UrlResource.java:146) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:311) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:495) ... 10 more DEBUG [main] (DroolsAdapter.java:246) - java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8089/drools-guvnor/org.drools.guvnor.Guvnor/package/Indi... java.lang.RuntimeException: java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8089/drools-guvnor/org.drools.guvnor.Guvnor/package/Indi... at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:592) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:701) at org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:679) at org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:979) at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:774) at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:646) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:192) at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:174) at com.infy.fcs.drools.DroolsAdapter.readKnowledgeBase(DroolsAdapter.java:241) at com.infy.fcs.drools.DroolsAdapter.main(DroolsAdapter.java:256) Caused by: java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8089/drools-guvnor/org.drools.guvnor.Guvnor/package/Indi... at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) at org.drools.io.impl.UrlResource.grabStream(UrlResource.java:210) at org.drools.io.impl.UrlResource.getInputStream(UrlResource.java:146) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:311) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:495) ... 10 more Any help would be appreciated !! Thanks, Abhinay -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-Integration-with-Eclipse-Issue-t... Sent from the Drools: User forum mailing list archive at Nabble.com.