Thread:Project:Support desk/Fatal error after upgrading to 1.19.2/reply (7)

I said rename the file, not delete it. You will need it to import back any settings from the previous install.

Are you sure you are pointing to the right path? The LocalSettings file contains all unique information for that wiki, including the database settings. So if you delete it, then you shouldn't be seeing the wiki nor should it be connected to any database. The web installer should run, since MediaWiki always checks if LocalSettings exists or not.

Try clearing the browser cache.