Last modified: 2010-02-13 00:06:06 UTC
See link: The special page says the extension InputBox doesn't exist. When searching for similar bugs, I saw bug [https://bugzilla.wikimedia.org/show_bug.cgi?id=16423 16423] and bug [https://bugzilla.wikimedia.org/show_bug.cgi?id=16424 16424]. Both don't apply to extension InputBox (http://svn.wikimedia.org/viewvc/mediawiki/trunk/extensions/InputBox/) I don't know why ExtensionDistributor thinks there is no extension with that name, but perhaps someone will find out some day.
Works for me (now).