[xwiki-users] Possible upgrade 3.5.1 to 4.0 issue

Hello, I have tried to upgrade to 4.0 and receive following error in the logs 2012-05-05 01:36:59,911 [http://localhost/xwiki/bin/view/XWiki/WatchListRss?xpage=plain&outputSy…] ERROR c.x.x.s.m.liquibase - Change Set liquibase.xml::R40000-000::sdumitriu failed. Error: Error executing SQL ALTER TABLE `xwikifloats` DROP FOREIGN KEY `FKFB291FBF1DFF14A1`: Error on rename of './xwiki_utf8_innodb/xwikifloats' to './xwiki_utf8_innodb/#sql2-dfb-6f91' (errno: 152) liquibase.exception.DatabaseException: Error executing SQL ALTER TABLE `xwikifloats` DROP FOREIGN KEY `FKFB291FBF1DFF14A1`: Error on rename of './xwiki_utf8_innodb/xwikifloats' to './xwiki_utf8_innodb/#sql2-dfb-6f91' (errno: 152) Any ideas why this may happen? Database is mysql 5.0.71. PS: Interesting why Sergiu got mentioned in the logs :) Regards, Roman -- View this message in context: http://xwiki.475771.n2.nabble.com/Possible-upgrade-3-5-1-to-4-0-issue-tp752… Sent from the XWiki- Users mailing list archive at Nabble.com.