update-manager crashed with AttributeError in _on_download_changed(): 'NoneType' object has no attribute 'set_value'

Bug #1045517 reported by ebnf
This bug affects 12 people
Affects Status Importance Assigned to Milestone
update-manager (Ubuntu)

Bug Description

Left update manager running in the background for several hours, came back and it was unresponsive.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: update-manager 1:0.170
ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
Uname: Linux 3.5.0-13-generic x86_64
ApportVersion: 2.5.1-0ubuntu4
Architecture: amd64
Date: Mon Sep 3 13:47:19 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/update-manager
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'launch-time' b'1346684008'
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'240'
 b'com.ubuntu.update-manager' b'window-width' b'500'
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
InterpreterPath: /usr/bin/python3.2mu
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager --no-update --no-focus-on-map
PythonArgs: ['/usr/bin/update-manager', '--no-update', '--no-focus-on-map']
SourcePackage: update-manager
Title: update-manager crashed with AttributeError in _on_download_changed(): 'NoneType' object has no attribute 'set_value'
 Traceback (most recent call last):
   File "/usr/lib/python3/dist-packages/aptdaemon/gtk3widgets.py", line 522, in _on_download_changed
     model.set_value(iter, self.COL_TEXT, text)
 AttributeError: 'NoneType' object has no attribute 'set_value'
UpgradeStatus: Upgraded to quantal on 2012-07-20 (45 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

Revision history for this message
ebnf (eric-zeitler) wrote :
tags: removed: need-duplicate-check
Changed in update-manager (Ubuntu):
importance: Undecided → Medium
information type: Private → Public
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in update-manager (Ubuntu):
status: New → Confirmed
Revision history for this message
Florian Hars (hars) wrote :

I had the "system needs reboot" open for a while, then when the next update came, it displayed the list of available updates for a moment, then became unresponsive and finally crashed.

Revision history for this message
jesse (jesse) wrote :

Hit as well after a reboot. Auto logged it and was greeted with the crash in the system tray.

Revision history for this message
Filiprino (filiprino) wrote :

Just had this error. Happened when I clicked the close button by accident (the button on the window bar).

Revision history for this message
Craig Kempson (ckempo) wrote :

Echoing Filiprino in #5, I've also just caused this by accidently hitting close whilst packages were being installed.

Revision history for this message
Abdelaziz Yakout (yooozy) wrote :

when it was installing packages I hit exit, this error happened.

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