For some reason the update-manager in Ubuntu 14.04 started to crash some weeks ago, and I'm not quite sure why (maybe I fiddled with something in the system I shouldn't have touched?) . When running $update-manager in a terminal, I get the following error message:

Traceback (most recent call last):

File "/usr/bin/update-manager", line 115, in app.start_update()

File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line 212, in start_update update_backend = get_backend(self, InstallBackend.ACTION_UPDATE)

File "/usr/lib/python3/dist-packages/UpdateManager/backend/init.py", line 92, in get_backend from .InstallBackendAptdaemon import InstallBackendAptdaemon

File "/usr/lib/python3/dist-packages/UpdateManager/backend/InstallBackendAptdaemon.py", line 12, in from aptdaemon.gtk3widgets import (AptCancelButton,

File "/usr/lib/python3/dist-packages/aptdaemon/gtk3widgets.py", line 42, in gi.require_version("Vte", "2.91")

File "/usr/lib/python3/dist-packages/gi/init.py", line 83, in require_version (namespace, version))

ValueError: Namespace Vte not available for version 2.91

Does anyone know the reason for this crash, and (more importantly) how to solve the problem?


1 Answer 1


I had an identical problem on Ubuntu 14.04.3 LTS "Trusty Tahr". My solution was

 sudo apt-get install gir1.2-vte-2.91 

It appeared to fix this problem and update-manager launched. I then found I had an issue with 1404_HWE_EOL and updated to 16 LTS.

  • This fixed my problem when i had purged python* from my ubuntu 16.04 xenial. works like a charm!
    – Shaze
    Oct 29, 2018 at 13:30

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.