Ubuntu
update-manager package

update-manager crashed with TypeError in update(): argument of type 'NoneType' is not iterable

Bug #1871490 reported by Norbert
126
This bug affects 25 people
Affects Status Importance Assigned to Milestone
update-manager (Ubuntu)
Fix Released
Critical
Marcus Tomlinson

Bug Description

crashed

ProblemType: Crash
DistroRelease: Ubuntu 20.04
Package: update-manager 1:20.04.4
ProcVersionSignature: Ubuntu 5.4.0-23.27-generic 5.4.29
Uname: Linux 5.4.0-23-generic x86_64
ApportVersion: 2.20.11-0ubuntu24
Aptdaemon:

Architecture: amd64
CrashCounter: 1
CurrentDesktop: MATE
Date: Tue Apr 7 23:59:28 2020
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 b'com.ubuntu.update-manager' b'launch-count' b'3'
 b'com.ubuntu.update-manager' b'launch-time' b'int64 1586293165'
InstallationDate: Installed on 2020-03-30 (8 days ago)
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
InterpreterPath: /usr/bin/python3.8
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager --no-update --no-focus-on-map
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonArgs: ['/usr/bin/update-manager', '--no-update', '--no-focus-on-map']
PythonDetails: N/A
SourcePackage: update-manager
Title: update-manager crashed with TypeError in update(): argument of type 'NoneType' is not iterable
UpgradeStatus: Upgraded to focal on 2020-03-31 (7 days ago)
UserGroups: adm cdrom dip libvirt libvirtd lpadmin plugdev sambashare sudo

Revision history for this message
Norbert (nrbrtx) wrote :
Apport retracing service (apport)
tags: removed: need-duplicate-check
Changed in update-manager (Ubuntu):
importance: Undecided → Medium
Marcus Tomlinson (marcustomlinson)
Changed in update-manager (Ubuntu):
status: New → In Progress
assignee: nobody → Marcus Tomlinson (marcustomlinson)
Marcus Tomlinson (marcustomlinson)
Changed in update-manager (Ubuntu):
importance: Medium → Critical
Iain Lane (laney)
information type: Private → Public
Revision history for this message
XA Hydra (xa-hydra) wrote :

So, this only happens for me when I add a PPA that does not have a Release file. (In this instance, dolphin-emu.org's PPA). I tried on another PPA that also does not have a release file and can replicate the error as well.

Disabling that PPA resolves the issue for now.

Revision history for this message
corrado venturini (corradoventu) wrote :

This happens at each boot on 2 different installations of Ubuntu 20.04 - I have NO PPA.

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package update-manager - 1:20.04.5

---------------
update-manager (1:20.04.5) focal; urgency=medium

  * Fix TypeError crash in update() (LP: #1871490).

 -- Marcus Tomlinson <email address hidden> Wed, 08 Apr 2020 17:59:48 +0100

Changed in update-manager (Ubuntu):
status: In Progress → Fix Released
Revision history for this message
Togo28 (togo28) wrote :

I have a different kernel, but the same problem. I have upgraded from 19.10.

Revision history for this message
Togo28 (togo28) wrote :

Tonight I experienced this bug about ten times

Revision history for this message
Marcus Tomlinson (marcustomlinson) wrote :

If update-manager is crashing this way for you, please open a terminal and run the following:

sudo apt update
sudo apt -y install update-manager

Revision history for this message
Aurileno (aurileno-jw) wrote :

update-manager crashed with TypeError in update

Revision history for this message
Tarık Buğra (gezgin61) wrote :

i m trying daily builds(current, today's) i have a ssd and a hdd, i tried to install ubuntu at hdd but it was confusing cuz all partitions(both hdd and ssd) were together at list. it said somethings that make me understand it may effect my ssd disk even if i choose hdd partitions for "efi" and "/" installation. but i thought ubuntu wouldnt do that. i trusted it. at end of installation i faced an error that says i may need to install somethings after i run ubuntu at short.then i restarted pc and saw a boot option for ubuntu with ssd word near it, which is i was afraid:/. and now while trying ubuntu suddenly update manager crashed i guess. yesderday i installed lubuntu, there was no problem after installation. so i dont think my laptop is bad for ubuntu. im using Asus X550L.

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