OS: Ubuntu 18.04.5 LTS x86_64
Kernel: 4.15.0-135-generic

When i run Software & Updates i get the following error:

You are not allowed to perform this action
You don't have the required privileges to perform this action.
org.freedesktop.PolicyKit.Error.Failed: ('system-bus-name', {'name': ':1.83'}): org.debian.apt.update-cache

When i run sudo /usr/lib/x86_64-linux-gnu/polkit-mate/polkit-mate-authentication-agent-1 i get

(polkit-mate-authentication-agent-1:3261): polkit-mate-1-WARNING **: 02:37:25.097: Unable to determine the session we are in: No session for pid 3261

When my desktop starts, i dont have a login screen. Not sure if it has anything to do with that.


I updated to 20.04 now the error is gone

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.