Thread:Extension talk:UserAdmin/MW = 1.21.1 + UserAdmin : error and solution

According to mediawiki from MW1.21.1 the function wfLoadExtensionMessages is removed. (other interesting link https://www.mediawiki.org/wiki/Special:Code/MediaWiki/52503 )

Now, UserAdmin don't works and you have to edit extensions/UserAdmin/SpecialUADMBase.class.php and comment (with //) row 59 :

wfLoadExtensionMessages('UserAdmin');

and it works!