[Bug 1629900] [NEW] update-manager crashed with ValueError in require_version(): Namespace Unity not available

[flocculant]

Public bug reported:

Update Manager crashes on start.

ProblemType: Crash
DistroRelease: Ubuntu 16.10
Package: update-manager 1:16.10.5
ProcVersionSignature: Ubuntu 4.8.0-17.19-generic 4.8.0-rc7
Uname: Linux 4.8.0-17-generic i686
ApportVersion: 2.20.3-0ubuntu7
Architecture: i386
CrashCounter: 1
CurrentDesktop: XFCE
Date: Mon Oct  3 16:03:21 2016
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'launch-time' b'1475506394'
InstallationDate: Installed on 2016-10-01 (2 days ago)
InstallationMedia: Xubuntu 16.10 "Yakkety Yak" - Alpha i386 (20161001)
InterpreterPath: /usr/bin/python3.5
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with ValueError in require_version(): Namespace Unity not available
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

** Affects: update-manager (Ubuntu)
     Importance: Medium
         Status: Confirmed


** Tags: apport-crash i386 yakkety

** Branch linked: lp:~flocculant/update-manager/update-manager

** Information type changed from Private to Public

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https://bugs.launchpad.net/bugs/1629900

Title:
  update-manager crashed with ValueError in require_version(): Namespace
  Unity not available

Status in update-manager package in Ubuntu:
  Confirmed

Bug description:
  Update Manager crashes on start.

  ProblemType: Crash
  DistroRelease: Ubuntu 16.10
  Package: update-manager 1:16.10.5
  ProcVersionSignature: Ubuntu 4.8.0-17.19-generic 4.8.0-rc7
  Uname: Linux 4.8.0-17-generic i686
  ApportVersion: 2.20.3-0ubuntu7
  Architecture: i386
  CrashCounter: 1
  CurrentDesktop: XFCE
  Date: Mon Oct  3 16:03:21 2016
  ExecutablePath: /usr/bin/update-manager
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'launch-time' b'1475506394'
  InstallationDate: Installed on 2016-10-01 (2 days ago)
  InstallationMedia: Xubuntu 16.10 "Yakkety Yak" - Alpha i386 (20161001)
  InterpreterPath: /usr/bin/python3.5
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/bin/update-manager
  PythonArgs: ['/usr/bin/update-manager']
  SourcePackage: update-manager
  Title: update-manager crashed with ValueError in require_version(): Namespace Unity not available
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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