[xwiki-users] Import pages from xwiki 2.7 to 3.0

I'm trying to upgrade from xwiki 2.7 to 3.0. I am using a PostgreSql database (I created a blank new database). In the web browser pointing to http://localhost:8087/xwiki/bin/view/Main/, I got the initial message that the wiki seems to be empty, and pointing to import xwiki-enterprise-wiki-3.0.xar. So, I imported xwiki-enterprise-wiki-3.0.xar. Then in the next step, I exported all the pages from the xwiki 2.7 into a file, let's say bakup-xwiki2.7.xar which is 78 Mb. I modified the Maximum Upload Size in the xwiki 3.0 preferences to 999999999999. Then, the next step was to import bakup-xwiki2.7.xar into xwiki 3.0. Went to the import page, selected the bakup-xwiki2.7.xar and then clicked "Upload" button. The file cannot be uploaded. The error that I get in the console is: 2011-04-28 18:39:16,564 [http://localhost:8087/xwiki/bin/upload/XWiki/XWikiPreferences] WARN web.UploadAction - Saving uploaded file failed com.xpn.xwiki.XWikiException: Error number 3201 in 3: Exception while saving document xwiki:XWiki.XWikiPreferences Wrapped Exception: Failed to commit or rollback transaction. Root cause [] ...etc... Did anyone else encounter this problem? What am I missing? Do I need to configure any other files? Any input will be greatly appreciated. Regards, Alina. -- View this message in context: http://xwiki.475771.n2.nabble.com/Import-pages-from-xwiki-2-7-to-3-0-tp6316… Sent from the XWiki- Users mailing list archive at Nabble.com.