[Bug 1013490] Re: update-manager crashed with ImportError in /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py: No module named plugincore.manager

[Hail Holy Ghost]

Hello,

I am getting this same error.  Has a solution been found?

Last night I updated to Precise Pangolin... or so I thought

[CODE]%lsb_release -rd
Description:	Ubuntu quantal (development branch)
Release:	12.10[/CODE]

I must empatically state I did NOT do this purposefully.  All I want is
to get back to Gnome and get the functionality back that Unity took
away.  "Downgrading" to Precise Pangolin would be *great*.

When I attempt to get GNOME back from the Software Center I get

[CODE]"gnome: Depends: gnome-core (= 1:3.0+6ubuntu3) but 1:3.0+6ubuntu3
is to be installed"[/CODE]

So then I attempt to install "gnome-core" from Synaptic

[CODE]The following packages have unresolvable dependencies.  Make sure that all required repositories are added and enabled in the preferences
gnome-core:
 Depends: evolution-data-server but it is not going to be installed
 Depends: gnome-contacts but it is not going to be installed
 Depends: gnome-panel but it is not going to be installed
 Depends: gnome-session but it is not going to be installed
 Depends: gnome-session-fallback but it is not going to be installed[/CODE]

So I attempt to use Synaptic to fix install evolution-data-server, but

evolution-data-server:
[CODE]  Depends: evolution-data-server-common (=3.2.3-0ubuntu7) but 3.4.3-1 is to be installed[/CODE]

This is what other Ubuntu people have referred to as "Dependency Hell".

How can I get GNOME back?](*,)

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to update-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1013490

Title:
  update-manager crashed with ImportError in /usr/lib/python3/dist-
  packages/DistUpgrade/DistUpgradeQuirks.py: No module named
  plugincore.manager

Status in “update-manager” package in Ubuntu:
  Confirmed

Bug description:
  when i start upgrade

  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: update-manager 1:0.163
  ProcVersionSignature: Ubuntu 3.4.0-5.11-generic 3.4.0
  Uname: Linux 3.4.0-5-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.2.2-0ubuntu2
  Architecture: i386
  Date: Fri Jun 15 07:54:54 2012
  ExecutablePath: /usr/bin/update-manager
  GsettingsChanges:
   
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120524)
  InterpreterPath: /usr/bin/python3.2mu
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3.2 /usr/bin/update-manager --dist-upgrade
  PythonArgs: ['/usr/bin/update-manager', '--dist-upgrade']
  SourcePackage: update-manager
  Title: update-manager crashed with ImportError in /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py: No module named plugincore.manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1013490/+subscriptions