Thread:Project:Support desk/Error when installing MediaWiki./reply (5)

Sorry for this comment  but it is clear that :or you need to remove that line from LocalSettings.php will not solve the problem! even reapeating I suggest you read those pages! probably he knew that, and he also  knew that error requires update after upgrading ! personally i found the solution by google serach on this link and everythig is ok after replacing this source on my FlaggedRevs.php.