[Bug 917592] Re: "Could not calculate the upgrade"/"pkgProblemResolver::Resolve generated breaks"

[HyperHacker]

...wouldn't that upgrade the entire OS to 11.10? I'd rather do a fresh
install at some point... I've had a lot of trouble with those upgrades
before.

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https://bugs.launchpad.net/bugs/917592

Title:
  "Could not calculate the upgrade"/"pkgProblemResolver::Resolve
  generated breaks"

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

Bug description:
  Since a few days ago, every time I start the computer I get an update
  icon in the notification area, and an error message when I open it:

  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.'

  After closing the message box, update manager wants to upgrade every
  package in the system.

  $ lsb_release -rd
  Description:    Ubuntu 11.04
  Release:        11.04

  $ apt-cache policy update-manager
  update-manager:
    Installed: 1:0.150.5.1
    Candidate: 1:0.156
    Version table:
       1:0.156 0
          500 http://ubuntu.mirror.cambrium.nl/ubuntu/ precise/main amd64 Packages
   *** 1:0.150.5.1 0
          500 http://ca.archive.ubuntu.com/ubuntu/ natty-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu/ natty-security/main amd64 Packages
          100 /var/lib/dpkg/status
       1:0.150 0
          500 http://ca.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: update-manager 1:0.150.5.1
  ProcVersionSignature: Ubuntu 2.6.38-13.53-generic 2.6.38.8
  Uname: Linux 2.6.38-13-generic x86_64
  Architecture: amd64
  Date: Tue Jan 17 04:17:19 2012
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=oneiric
   /apps/update-manager/first_run=false
   /apps/update-manager/show_details=true
   /apps/update-manager/window_size=(570,634)
  InstallationMedia: Xubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426.1)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_CA:en
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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