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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?

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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 '18 at 13:30

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