[Bug 934413] Re: An unresolvable problem occurred while calculating the upgrade

[Sundaravenkataraman]

** Attachment added: "Screenshot at 2012-02-18 00:22:27.png"
   https://bugs.launchpad.net/bugs/934413/+attachment/2749837/+files/Screenshot%20at%202012-02-18%2000%3A22%3A27.png

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https://bugs.launchpad.net/bugs/934413

Title:
  An unresolvable problem occurred while calculating the upgrade

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

Bug description:
  I tried to upgrade to 12.04 alpha version 11.10, by typing "update-manager -d" from terminal, after completing getting new software channels, I got this error message:
  " Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade:
  E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

   This can be caused by:
   * Upgrading to a pre-release version of Ubuntu
   * Running the current pre-release version of Ubuntu
   * Unofficial software packages not provided by Ubuntu

  If none of this applies, then please report this bug using the command
  'ubuntu-bug update-manager' in a terminal."

  
  For your more info, I've attached some screenshots...

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: update-manager 1:0.152.25.5
  ProcVersionSignature: Ubuntu 3.0.0-15.25-generic 3.0.13
  Uname: Linux 3.0.0-15-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  Date: Sat Feb 18 00:14:05 2012
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to oneiric on 2012-02-17 (0 days ago)

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