[Bug 834261] Re: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'

[Malaika Boyd]

I recently upgraded to Oneiric, and am having this same problem,
including being able to run apt-get upgrade without a problem.  I also
have a large number of packages listed as broken in my apt.log, and in
the most recent entry (from yesterday) are errors from NvidiaDetection
and an error from Brasero saying that it's not upgradable.

** Attachment added: "apt.log"
   https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/834261/+attachment/2591557/+files/apt.log

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https://bugs.launchpad.net/bugs/834261

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

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

Bug description:
  When I start update-manager after upgrading today, I get the following
  message:

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  Please report this bug against the 'update-manager' package and include the following error message:
  'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'

  And the list of available packages is blank, but the window says I can
  upgrade 45 packages (same with the launcher icon).

  An 'apt-get upgrade' works as expected however.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: update-manager 1:0.152.16
  ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
  Uname: Linux 3.0.0-9-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Thu Aug 25 20:52:03 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to oneiric on 2011-08-21 (4 days ago)

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