I'm trying to upgrade from vBulletin 3.6.8 but when I go to /install/upgrade.php I get this database error:
Database error in vBulletin 3.6.8:
I've disabled all hacks.
What could the problem be?
Database error in vBulletin 3.6.8:
Code:
Invalid SQL: ALTER TABLE attachment ADD INDEX userid (userid); MySQL Error : Duplicate key name 'userid' Error Number : 1061 Request Date : Wednesday, May 28th 2008 @ 07:04:11 PM Error Date : Wednesday, May 28th 2008 @ 07:04:11 PM Script : http://www.website.com/install/upgrade_300b6.php?step=2 Referrer : IP Address : xx.xxx.xxx.xx Username : Classname : vb_database MySQL Version : 4.1.22-standard
What could the problem be?
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