How can I fix the MediaWiki error “Wiki uses cookies to log in users. You have cookies disabled. Please enable them and try again.”?

Question

The problem I am having is that I can not log on to my newly created wiki that I made using MediaWiki. I have searched the web for an answer, and the ones I found did not help w

Answer 1

The easiest solution, also recommended by Aaron Schulz, is generally to set

$wgSessionsInObjectCache = true;
$wgMainCacheType = CACHE_ANYTHING;

in your LocalSettings.php. In recent PHP you'll have OPcache enabled by default; if no accelerator is available, at worst this configuration will use the database.

See also cache documentation.