Thread:Project:Support desk/Easy way to upgrade from version 1.8 to 2.1?/reply (4)

Again, thanks for your help.

I removed FCKeditor as you suggested and then got an error when rerunning the update.php:

PHP Fatal error: Call to undefined function wfLoadExtensionMessages in /var/www/html/mediawiki/extensions/CategoryWatch/CategoryWatch.php on line 239

So I also removed CategoryWatch.

That made the Update script run successfully.

When I then browsed to the updated mediawiki it failed to show any of the content which was from the old mediawiki. All I got was the replaced logo image and the same startup main page. :(