Newbie question : Webfrontend error -> Specified locale is not available


Installed ownCloud using the OVA/Virtualbox appliance (on CentOS 7.5 host). All appeared to have gone well except that when loging in to the Administrator’s web page I always get errors and am not able to do anything (in apparently any module) :

Webfrontend error: The specified UMCP command arguments of the request are invalid.

Server error message:

Specified locale is not available

What should I do ?


Apparently the system locales where not set properly:

$ locale-gen
$ export LANGUAGE=en_IE.UTF-8
$ export LC_ALL=en_IE.UTF-8

(I’m not sure but I may have to do again on a reboot … hence the question mark in [SOLVED ?])



check your UCR variables:

  • locale should contain en_IE.UTF-8, e.g. en_US.UTF-8 en_IE.UTF-8. It configures the available locales.
  • locale/default should be set to en_IE.UTF-8:UTF-8 for you.

You can also configure both in the UMC (Univention Management Console), via the “System” → “Language settings” module.

Kind regards