Thread:Project:Support desk/Extensions Specialpage Aliases don't work after update

Hello, i have a problem: a few days ago i updated my mediawiki-wiki from version 1.17 to version 1.20. Since the update the Specialpage-Aliases don't work anymore. A few research later i found out, that $wgExtensionAliasesFiles was included in $wgExtensionMessagesFiles. Now the curious things begin. I changed the variables into the new style and as it hadn't work i try out some more things and finaly come back to my first version with 2x $wgExtensionMessagesFiles which finaly works. I try to reproduce my changes for the other extensions, but all i try doesn't work.... only one other extension more works now (after XXX trys) and i can't find out whats the problem. I even use a programm to compare the versions and highlight the differences on the correctly changed files, but there were no more changes then the one i also try on the not-correct working extension-aliases. Can you help me, or give me at least a list of changes i have to check?

Thanks in advance