Thread:Project:Support desk/Fatal error: Call to a member function addWikiMsg() on a non-object in /home/username/public html/wiki/includes/specials/SpecialLinkSearch.php on line 82/reply (7)

You said " You may want to change the value of $wgSecretKey and $wgUpgradeKey afterwards since they were left in your LocalSettings.php

How to do it? for test I just addes abc at the end of $wgSecretKey and $wgUpgradeKey but got the same error. What can I do now? Amy body can help?