Thread:Project:Support desk/not upgrading properly

Supposedly I am upgrading but when I get to the Media Wiki page [|here] it says:'' An existing installation of MediaWiki has been detected. To upgrade this installation, please put the following line at the bottom of your LocalSettings.php: (followed by a number)'' I go to the File Manager and add the line to LocalSettings. I have two different files so-called. One in directory dir and another in public_html. I added it to both considering I was not sure which. I can't seem to get past the "existing installation file" when I hit continue. MW does not seem to recognize that I have done it and I can't move on. I have tried to restart the installation but I just go through the same cycle and stop. Special pages:Version shows that I am still at 1.18.3.