[Bug 873883] Re: Natty->Oneiric Upgrade failed: An unresolvable problem occurred while calculating the upgrade

[Thilo-Alexander Ginkel]

Hm, I manually enabled multiarch using:
  echo foreign-architecture i386 | sudo tee /etc/dpkg/dpkg.cfg.d/multiarch
as per the instructions in [1], but update-manager is still failing.

s/natty/oneiric/ in /etc/apt/sources.list and running apt-get update &&
apt-get dist-upgrade (with multiarch enabled) brings up the same issue:

$ sudo apt-get dist-upgrade 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Failed
The following packages have unmet dependencies:
 ia32-libs : Recommends: ia32-libs-multiarch
             Breaks: nspluginwrapper (< 1.4.4-0ubuntu2) but 1.2.2-0ubuntu9 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

[1] https://lists.ubuntu.com/archives/ubuntu-devel-
announce/2011-August/000886.html

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https://bugs.launchpad.net/bugs/873883

Title:
  Natty->Oneiric Upgrade failed: An unresolvable problem occurred while
  calculating the upgrade

Status in “ia32-libs” package in Ubuntu:
  Invalid
Status in “update-manager” package in Ubuntu:
  Confirmed

Bug description:
  I got the following error message pop-up:

  ----------
  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.
  ----------

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: update-manager 1:0.150.3
  ProcVersionSignature: Ubuntu 2.6.38-12.51-generic 2.6.38.8
  Uname: Linux 2.6.38-12-generic x86_64
  Architecture: amd64
  Date: Fri Oct 14 08:45:07 2011
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=
   /apps/update-manager/first_run=false
   /apps/update-manager/show_details=true
   /apps/update-manager/window_size=(500,600)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to natty on 2011-10-14 (0 days ago)

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