Thanks Marius, for replying, much appreciated. Find the screenshot here https://dl.dropboxusercontent.com/u/53941840/Screen%20Shot%202015-03-05%20a… Yes, the Upgrade button is there, but clicking it brought me there (the error message was not there initially and the wizard had asked me which version I'm upgrading from. I answered 6.4.1). And clicking it again makes the screen busy for a few minutes and returns to the same screen. It seems to be stuck in this loop. I found out that in Chrome I can hit Later and it lets me through to the Wiki, until the next login. And this screen takes it time, so quite annoying. Well at least it is a workaround. The logs show iMar 05, 2015 8:05:30 AM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /var/lib/tomcat7/webapps/Wiki 2015-03-05 08:05:43,010 [pool-2-thread-1] WARN o.x.e.i.ServletEnvironment - No permanent directory configured. Using temporary director y [/var/cache/tomcat7/Catalina/localhost/Wiki]. 2015-03-05 08:05:48,892 [pool-2-thread-1] WARN ltInstalledExtensionRepository - Invalid extension [org.xwiki.enterprise:xwiki-enterprise-ui -common-6.4.1] on namespace [wiki:xwiki] (InvalidExtensionException: Dependency [org.xwiki.platform:xwiki-platform-oldcore-[6.4.1]] is incom patible with the core extension [org.xwiki.platform:xwiki-platform-legacy-oldcore-6.4.2]) 2015-03-05 08:05:48,896 [pool-2-thread-1] WARN ltInstalledExtensionRepository - Invalid extension [org.xwiki.enterprise:xwiki-enterprise-ui -mainwiki-6.4.1] on namespace [wiki:xwiki] (InvalidExtensionException: Dependency [org.xwiki.platform:xwiki-platform-oldcore-[6.4.1]] is inc ompatible with the core extension [org.xwiki.platform:xwiki-platform-legacy-oldcore-6.4.2]) 2015-03-05 08:05:49,031 [pool-2-thread-1] INFO o.x.s.s.i.EmbeddedSolrInstance - Starting embedded Solr server... 2015-03-05 08:05:49,040 [pool-2-thread-1] INFO o.x.s.s.i.EmbeddedSolrInstance - Using Solr home directory: [/var/cache/tomcat7/Catalina/loc alhost/Wiki/solr] 2015-03-05 08:05:53,881 [coreLoadExecutor-5-thread-1] WARN o.a.s.c.RequestHandlers - Multiple requestHandler registered to the same name: /update ignoring: org.apache.solr.handler.UpdateRequestHandler 2015-03-05 08:06:00,024 [pool-2-thread-1] INFO o.x.s.s.i.EmbeddedSolrInstance - Started embedded Solr server. Mar 05, 2015 8:06:02 AM org.apache.coyote.AbstractProtocol startphp5-pdo php5-pdo_mysql php5-memcache php5-curl php5-mbstring php-apc php-so ap php-imap memcached php-gd php-pear Kaj -- View this message in context: http://xwiki.475771.n2.nabble.com/Installed-version-6-4-1-is-not-valid-tp75… Sent from the XWiki- Users mailing list archive at Nabble.com.

Oh, Oh, I did something wrong I guess. Well, as I have to change the xwiki.cfg and the hibernate config, I unzipped the war anyway. So for upgrade I move the old dir our of the way , unzipped the new one and copied back the config (diffed it before as to merge it, but seemed not necessary. Which is the permanent directory? where is it? What else do I need to do now ? Thanks for the help, much appreciated. Kaj -- View this message in context: http://xwiki.475771.n2.nabble.com/Installed-version-6-4-1-is-not-valid-tp75… Sent from the XWiki- Users mailing list archive at Nabble.com.

On Thu, Mar 5, 2015 at 8:28 PM, Conficio <kajkandler(a)conficio.com> wrote: This is fine. As I said, the permanent directory is outside the war so I guess you kept it. The permanent directory is configured in xwiki.properties . What about the last question. Do you have the progress tab after clicking on the "Show details" button displayed before the Upgrade button? > Kaj > -- > View this message in context: http://xwiki.475771.n2.nabble.com/Installed-version-6-4-1-is-not-valid-tp75… > Sent from the XWiki- Users mailing list archive at Nabble.com. > _______________________________________________ > users mailing list > users(a)xwiki.org > http://lists.xwiki.org/mailman/listinfo/users

I did follow the Upgrade guide, off course. What makes me confused is that it talks (like the install guide) of replacing the war file, when I have to unpack the war file in order to configure the hibernate.cfg and the xwiki.cfg and xwiki.properties. I also missed the importance of actually setting the permanent.directory, as it is by default stored in a temp location. So now I did restore the 6.4.1 environment and then moved the permanent directory then started again and it ran through the upgrade wizard for 6.4.1 seemingly successfully. Then I did upgrade to 6.4.2 again (replaced the directory of webapp (with the unpacked war content and made sure the config is right). 6.4.2 greats me with the same screen (6.4.1 UI invalid) clicking "upgrade" results in teh following The following extensions will be upgraded: Admin User Application6.4.2 (in wiki Home) Version 6.4.1 is installed Attachment Application6.4.2 (in wiki Home) Version 6.4.1 is installed Administration Application6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Livetable - UI6.4.2 (in wiki Home) Version 6.4.1 is installed Icon Theme Application6.4.2 (in wiki Home) Version 6.4.1 is installed Font Awesome Icon Theme6.4.2 (in wiki Home) Version 6.4.1 is installed Tree Macro6.4.2 (in wiki Home) Version 6.4.1 is installed Index Application6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Panels - UI6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Scheduler - UI6.4.2 (in wiki Home) Version 6.4.1 is installed Activity Stream Application6.4.2 (in wiki Home) Version 6.4.1 is installed Message Stream Application6.4.2 (in wiki Home) Version 6.4.1 is installed User Profile Application6.4.2 (in wiki Home) Version 6.4.1 is installed Watchlist Application6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Statistics - UI6.4.2 (in wiki Home) Version 6.4.1 is installed Lucene Search Application6.4.2 (in wiki Home) Version 6.4.1 is installed Search Application6.4.2 (in wiki Home) Version 6.4.1 is installed Solr Search Application6.4.2 (in wiki Home) Version 6.4.1 is installed Office Importer Application6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - WebDAV - UI6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Tag - UI6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Rendering - Wiki Macro Bridge - UI6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Annotations - UI6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Invitation - UI6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Extension - UI6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Sheet - UI6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - User Interface Extension - UI6.4.2 (in wiki Home) Version 6.4.1 is installed App Within Minutes Application6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - LinkChecker - UI6.4.2 (in wiki Home) Version 6.4.1 is installed Dashboard Application6.4.2 (in wiki Home) Version 6.4.1 is installed User Directory Application6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Logging - UI6.4.2 (in wiki Home) Version 6.4.1 is installed Color Themes Application6.4.2 (in wiki Home) Version 6.4.1 is installed Sandbox Application6.4.2 (in wiki Home) Version 6.4.1 is installed Help Application6.4.2 (in wiki Home) Version 6.4.1 is installed WYSIWYG Editor Configuration Application6.4.2 (in wiki Home) Version 6.4.1 is installed Flamingo Theme Application6.4.2 (in wiki Home) Version 6.4.1 is installed Bootswatch Themes for Flamingo6.4.2 (in wiki Home) Version 6.4.1 is installed Mail Application6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Enterprise - UI - Common6.4.2 (in wiki Home) Installed version 6.4.1 is not valid Blog Application6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Platform - Wiki - UI - Common6.4.2 (in wiki Home) Version 6.4.1 is installed Wiki Application6.4.2 (in wiki Home) Version 6.4.1 is installed XWiki Enterprise - UI - Main wiki6.4.2 (in wiki Home) Seemingly failing, as the same message persists, albeit now I have a "continue" button - https://www.dropbox.com/s/6e7n0i0974k5q2h/Screen%20Shot%202015-03-05%20at%2… Clicking the Continue button , does bring me back to the same screen with the "Upgrade" button. Feels like progress is non existent. O.K. next I'll revert to 6.4.1, export the Wiki and do a fresh install of 6.4.2 followed by an import. Because this upgrade wizard is clearly not working for me. -- View this message in context: http://xwiki.475771.n2.nabble.com/Installed-version-6-4-1-is-not-valid-tp75… Sent from the XWiki- Users mailing list archive at Nabble.com.