[Bug 1040990] Re: E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

[Marc Boisvert-Dupras]

Same for me. Here's what I tried:
sudo -i
apt-get update
apt-get autoclean
apt-get autoremove
apt-get upgrade
apt-get dist-upgrade

Without success. All commands work except "apt-get dist-upgrade"

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https://bugs.launchpad.net/bugs/1040990

Title:
  E: Error, pkgProblemResolver::Resolve generated breaks, this may be
  caused by held packages.

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

Bug description:
  This is a quantal upgraded from precise, daily updates/upgrades.

  apt-get update completes successfully.  apt-get upgrade completes
  successfully.

  apt-get dist-upgrade :

  root at precise-X201:~# apt-get dist-upgrade
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Calculating upgrade... Failed
  The following packages have unmet dependencies:
   gnome-control-center : Breaks: metacity (< 1:2.34.2) but 1:2.34.1-1ubuntu11 is to be installed
  E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

  There are no held packages.

  root at precise-X201:~# lsb_release -rd
  Description:	Ubuntu quantal (development branch)
  Release:	12.10

  root at precise-X201:~# apt-cache policy metacity
  metacity:
    Installed: 1:2.34.1-1ubuntu11
    Candidate: 1:2.34.3-3ubuntu1
    Version table:
       1:2.34.3-3ubuntu1 0
          500 http://us.archive.ubuntu.com/ubuntu/ quantal-proposed/main amd64 Packages
          500 http://sg.archive.ubuntu.com/ubuntu/ quantal-proposed/main amd64 Packages
   *** 1:2.34.1-1ubuntu11 0
          500 http://uk.archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: update-manager 1:0.169
  ProcVersionSignature: Ubuntu 3.5.0-11.11-generic 3.5.2
  Uname: Linux 3.5.0-11-generic x86_64
  ApportVersion: 2.5.1-0ubuntu1
  Aptdaemon:
   
  Architecture: amd64
  Date: Fri Aug 24 10:15:33 2012
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'launch-time' b'1339681272'
   b'com.ubuntu.update-manager' b'show-details' b'true'
   b'com.ubuntu.update-manager' b'window-height' b'587'
   b'com.ubuntu.update-manager' b'window-width' b'600'
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111129.1)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_SG:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_SG.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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