[Bug 1003391] [NEW] Could not calculate the upgrade 11.10 -> 12.04

[Maurice Boxman]

Public bug reported:

Calculating the changes

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade:
E:Unable to correct problems, you have held broken 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.


Restoring original system state

Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done


Is there a way to "force" the upgrade discarding this error?

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: update-manager 1:0.152.25.11
ProcVersionSignature: Ubuntu 3.0.0-19.33-generic 3.0.27
Uname: Linux 3.0.0-19-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Wed May 23 14:25:16 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to oneiric on 2012-05-23 (0 days ago)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: Invalid


** Tags: apport-bug dist-upgrade i386 oneiric running-unity

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https://bugs.launchpad.net/bugs/1003391

Title:
  Could not calculate the upgrade 11.10 -> 12.04

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

Bug description:
  Calculating the changes

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade:
  E:Unable to correct problems, you have held broken 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.

  
  Restoring original system state

  Aborting
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Building data structures... Done

  
  Is there a way to "force" the upgrade discarding this error?

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: update-manager 1:0.152.25.11
  ProcVersionSignature: Ubuntu 3.0.0-19.33-generic 3.0.27
  Uname: Linux 3.0.0-19-generic i686
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  Date: Wed May 23 14:25:16 2012
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to oneiric on 2012-05-23 (0 days ago)

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