Hello all I need to migrate from 4.0.7 drools to 5.1, could you please give some advices and links? We have drools JBRMS 4.0.7 app with lots of rules, persisted in Oracle. We haven't any .drl files for these rules. I've tried to export these rules via export feature from JBRMS 4 and then import the derived XML via import feature in Guvnor 5, but I get the following error: 17:56:55,365 INFO [STDOUT] ERROR 16-03 17:56:55,361 (RulesRepository.java:importRulesRepositoryFromStream:1073) illegal node name: {http://www.jcp.org/jcr/sv/1.0}node javax.jcr.InvalidSerializedDataException: illegal node name: {http://www.jcp.org/jcr/sv/1.0}node at org.apache.jackrabbit.core.xml.SysViewImportHandler.startElement(SysViewImportHandler.java:141) at org.apache.jackrabbit.core.xml.ImportHandler.startElement(ImportHandler.java:169) at org.apache.jackrabbit.commons.xml.DefaultContentHandler.startElement(DefaultContentHandler.java:161) at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source) at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) Is there some way how we can transfer the rules from JBRMS to Guvnor? Does the Guvnor has another rules format, so it can't import from JBRMS XML? Is there some specs about differences, so I would be able to write the converter? Or is there some already published converter? Would it make sense to export the rules via JCR API from old JBRM JCR (1.3) and then import it to new JCR repo created by Guvnor? How we can upgrade the drools version without loosing our already created rules? -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Migrate-from-JBRMS-4-... Sent from the Drools - User mailing list archive at Nabble.com.