Changing Lanuage or WPMU 2.9.2 fails

Did you add your language in wp-config.php?
https://codex.www.ads-software.com/Editing_wp-config.php#Language_and_Language_Directory
Additional reading
https://codex.www.ads-software.com/Installing_WordPress_in_Your_Language
https://codex.www.ads-software.com/WordPress_in_Your_Language

I saw some threads in WPMU forums regarding this matter, so please do a search there – https://mu.www.ads-software.com/forums/

I have used this plugin https://www.ads-software.com/extend/plugins/sitepress-multilingual-cms/ for WPMU with users blogs posted in different languages. That would be overkill for the one language sitewide in your case, but might provide you some hints as well.

Good luck.

yes i did everything as written on codex.wp.org

didn’t found anything … do you have a hint for me ?

please can anyone help me … it seems that this is a bug ! i also got “Corsican” as a language besides english and german but didn’t install this!

Go over the steps here:
https://wpmututorials.com/how-to/localization/

And also make sure you have the *BuddyPress* translation files as well.

I did as you mentined on wpmututorials.com … no chance to see anything in german

??

Don’t know why Corsican is appearing there, check if you have installed a plugin/theme which added that to your install.

1. Add the de_DE.mo also to wp-includes/languages/

2. Plus – https://patrick.bloggles.info/2009/05/17/wpmu-admin-language-plugin/

3. Also make sure that the theme you are using is translatable – for some examples of translatable themes, see source code of BP bp-default theme files or WP’s Classic Theme files

1. I tried also with wp-includes/languages a while ago
2. I don’t want to use a plugin for translations if theres support for this in the core
3. BuddyPress and a part of the THeme is translated, my problem is the WP-backend where neither the files nor the settings i changed to german affects the language