[Bug 2055007] Re: Software & Updates simply does not start, Update Manager crashes when I try to check out the checkbox of an update.

[Zalán Hári]

The second problem has been solved: now, Update Manager is working
perfectly.

** Changed in: update-manager (Ubuntu)
       Status: New => Fix Released

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Title:
  Software & Updates simply does not start, Update Manager crashes when
  I try to check out the checkbox of an update.

Status in update-manager package in Ubuntu:
  Fix Released

Bug description:
  Pro primo: Software & Updates cannot start, when I click to the button, it does not show anything. When I try to launch it from the terminal with software-properties-gtk, I get a beautiful error message:
  Traceback (most recent call last):
    File "/usr/bin/software-properties-gtk", line 100, in <module>
      app = SoftwarePropertiesGtk(datadir=options.data_dir, options=options, file=file)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 163, in __init__
      SoftwareProperties.__init__(self, options=options, datadir=datadir,
    File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 109, in __init__
      self.backup_sourceslist()
    File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 437, in backup_sourceslist
      source_bkp = SourceEntry(line=source.line,file=source.file)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/usr/lib/python3/dist-packages/aptsources/sourceslist.py", line 509, in __init__
      raise ValueError("Classic SourceEntry cannot be written to .sources file")
  ValueError: Classic SourceEntry cannot be written to .sources file

  I can program in Python at a medium level, but it is too much for me.
  Application version: 0.99.42

  Pro secundo: Software Updater crashes without any error message, when
  I empty the checkbox of an arbitrary package. Application version:
  1:24.04.4

  Excluded that and a few such errors, congratulations for Noble Numbat,
  it is really nice!

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: update-manager 1:24.04.4
  ProcVersionSignature: Ubuntu 6.6.0-14.14-generic 6.6.3
  Uname: Linux 6.6.0-14-generic x86_64
  ApportVersion: 2.28.0-0ubuntu1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Feb 26 07:46:09 2024
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'launch-count' b'74'
   b'com.ubuntu.update-manager' b'launch-time' b'int64 1708923558'
   b'com.ubuntu.update-manager' b'show-details' b'true'
   b'com.ubuntu.update-manager' b'window-width' b'645'
  InstallationDate: Installed on 2023-07-05 (236 days ago)
  InstallationMedia: Ubuntu 20.04.6 LTS "Focal Fossa" - Release amd64 (20230316)
  PackageArchitecture: all
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to noble on 2024-02-24 (2 days ago)
  modified.conffile..etc.init.d.apport: [modified]
  mtime.conffile..etc.init.d.apport: 2024-02-22T15:20:00

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