Problem: App can not be installed

Problem

A dockerized app (f.e. rocketchat) can not be installed.

Environment

UCS 4.4-4
dockerized app

Solution

If you had installed a dockered App in the past and removed it, it may happen that data of the old installation resists on the system. In our example we check:

root@ucs:~ # ls -l /var/lib/univention-appcenter/apps/rocketchat/

and we remove the old data:

rm /var/lib/univention-appcenter/apps/rocketchat/