Hey, I was trying to read a package(ResourceType.PKG), which i downloaded from Guvnor, using KnowledgeBuilder, but I consistently get the following error while trying to access the file. Here's my code and the error, **Code** KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add( ResourceFactory.newClassPathResource( "Goal Creation Charges.pkg", getClass() ), ResourceType.PKG ); if ( kbuilder.hasErrors() ) { System.err.println( kbuilder.getErrors().toString() ); } kbase = KnowledgeBaseFactory.newKnowledgeBase(); kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() ); **Error** java.lang.RuntimeException: java.io.StreamCorruptedException: invalid stream header: 7061636B at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:724) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:51) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:40) at com.infosys.fps.drools.adapter.DroolsAdapter.readKnowledgeBase(DroolsAdapter.java:80) at com.infosys.fps.drools.adapter.DroolsAdapter.main(DroolsAdapter.java:20) Caused by: java.io.StreamCorruptedException: invalid stream header: 7061636B at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:783) at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280) at org.drools.common.DroolsObjectInputStream.<init>(DroolsObjectInputStream.java:68) at org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:205) at org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189) at org.drools.compiler.PackageBuilder.addPackageFromInputStream(PackageBuilder.java:819) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:711) ... 4 more I have tried using both binary and source from guvnor, but neither of them works. I get the same error. Is there something m doing wrong ? Thanks, Abhinay -- View this message in context: http://drools.46999.n3.nabble.com/Reading-a-Guvnor-PKG-from-drools-API-tp... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users