Thread:Extension talk:User Merge and Delete/"Fatal error: Call to undefined method Xml::hidden()

I am using MediaWiki 1.17.x and tried to install UserMerge via "Download snapshot" where I had to choose the version of MW.

After installation, I got the error, so I had to edit UserMerge_body.php:

Now it works. --31.17.41.51 10:33, 5 June 2012 (UTC)