Problem: After ugrading from 4.4 apps are missing or behave strangely

Problem

After upgrading successfully from 4.4-0 to 5.0-* apps are missing, seam to be newly installed or URL missing and other strange behaviors.

Environment

After Upgrade from 4.4-* to 5.0-*

UCS
UCS@School

Solution

Please make sure you have installed the errata 224

Investigation

Your:

docker ps `my-missing-app`

results may looks like **:

docker.software-univention.de/my-missing-app 21.0.7-0 1c36271a798a 7 weeks ago 1.18GB
docker.software-univention.de/my-missing-app 21.0.5-0 1b9c0aa1ff67 2 months ago 1.18GB

In:

/var/log/univention/listener_modules/.log

you might find:

2022-02-02 10:01:48 CRITICAL App not found

Root Cause

When univention-app update is running, the app center cache is invalidated, new metafiles are downloaded and extracted. The first usage of appcenter python library functions finds no cache and rebuilds it. See bug for further details

** See also:

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