Hello, I'm trying to upgrade from XE 3.1M2 to XE 3.3-RC1 and I am facing an exception that I can't figure out how to solve. I've set up my xwiki.cfg activating both updateschema and store.migration flags. I've also enabled class isolation on my Jboss 4.2.3. I'm running my Xwiki instance on Postgres 8.3, and the xwiki's hibernate config file is configured properly. When I try to first call the instance, I got these exceptions. It seems that data or schema migration are not working for any of the xml pages. Could you help me? 1) The error is: com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3201 in 3: Exception while saving document xwiki:XWiki.XWikiUsers Wrapped Exception: Error number 3211 in 3: Exception while updating archive XWiki.XWikiUsers Wrapped Exception: Error number 0 in 3: Exception while hibernate execute Wrapped Exception: could not load an entity: [com.xpn.xwiki.doc.rcs.XWikiRCSNodeContent#component[docId,version1,version2]{docId=495778886, version2=6, version1=1}] 2) Then in Jboss log I got these info when starting the xwiki instance (I took off the timestamp and xwiki path garbage info): WARN o.i.m.DefaultCacheManager - ISPN000156: You are not starting all your caches at the same time. This can lead to problems as asymmetric clusters are not supported, see ISPN-658. We recommend using EmbeddedCacheManager.startCaches() to start all your caches upfront. WARN o.h.u.DTDEntityResolver - recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide! INFO .AbstractXWikiMigrationManager - Current storage version = [0] INFO .AbstractXWikiMigrationManager - List of migrations that will be executed: INFO .AbstractXWikiMigrationManager - R4340XWIKI883 - See http://jira.xwiki.org/jira/browse/XWIKI-883 INFO .AbstractXWikiMigrationManager - R4359XWIKI1459 - See http://jira.xwiki.org/jira/browse/XWIKI-1459 INFO .AbstractXWikiMigrationManager - R7345XWIKI2079 - See http://jira.xwiki.org/jira/browse/XWIKI-2079 INFO .AbstractXWikiMigrationManager - R15428XWIKI2977 - Add a GUID to existing objects when upgrading from pre-1.8M1. INFO .AbstractXWikiMigrationManager - Running migration [R4340XWIKI883] with version [4340] INFO .AbstractXWikiMigrationManager - New storage version is now [4341] INFO .AbstractXWikiMigrationManager - Running migration [R4359XWIKI1459] with version [4359] INFO .AbstractXWikiMigrationManager - New storage version is now [4360] INFO .AbstractXWikiMigrationManager - Skipping unneeded migration [R6079XWIKI1878] with version [6079] INFO .AbstractXWikiMigrationManager - New storage version is now [6080] INFO .AbstractXWikiMigrationManager - Skipping unneeded migration [R6405XWIKI1933] with version [6405] INFO .AbstractXWikiMigrationManager - New storage version is now [6406] INFO .AbstractXWikiMigrationManager - Running migration [R7345XWIKI2079] with version [7350] INFO .AbstractXWikiMigrationManager - New storage version is now [7351] INFO .AbstractXWikiMigrationManager - Running migration [R15428XWIKI2977] with version [15428] INFO .AbstractXWikiMigrationManager - New storage version is now [15429] 3) And then the error exception (many of these arises): WARN o.h.u.JDBCExceptionReporter - SQL Error: 0, SQLState: 22003 ERROR o.h.u.JDBCExceptionReporter - Bad value for type long : <?xml version="1.0" encoding="UTF-8"?> <xwikidoc> <web>Scheduler</web> <name>WatchListDailyNotifier</name> <language></language> <defaultLanguage></defaultLanguage> <translation>0</translation> <parent>XWiki.WatchListClass</parent> <creator>XWiki.superadmin</creator> <author>XWiki.superadmin</author> <customClass></customClass> <contentAuthor>XWiki.superadmin</contentAuthor> ... So, when xwiki reads the xml's pages during startup, the first line of all them seems to not to be expected for the migration class. Thanks a lot. Sincerely, -- Ramon GB skype: ramongb