[Bug 1408258] Re: An unresolvable problem occurred while calculating the upgrade.

[Brian Murray]

This is probably due to a PPA you have enabled and it providing packages
that are greater in version numbering than those available in Trusty.
Try disabling the PPA and downgrading its packages using 'ppa-purge' and
try the upgrade again.

** Changed in: update-manager (Ubuntu)
       Status: New => Incomplete

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to update-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1408258

Title:
  An unresolvable problem occurred while calculating the upgrade.

Status in update-manager package in Ubuntu:
  Incomplete

Bug description:
  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

  upgrade from 12.04 lts to 14.04 lts

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.17
  ProcVersionSignature: Ubuntu 3.2.0-75.110-generic-pae 3.2.64
  Uname: Linux 3.2.0-75-generic-pae i686
  NonfreeKernelModules: openafs fglrx
  ApportVersion: 2.0.1-0ubuntu17.8
  Architecture: i386
  CheckboxSubmission: db38d64b9e13b79147f54cc97cc03762
  CheckboxSystem: daed2f3d6643b4a84b4520a2427f8c2b
  Date: Wed Jan  7 10:26:25 2015
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1419316112
   com.ubuntu.update-manager show-details true
   com.ubuntu.update-manager window-height 600
   com.ubuntu.update-manager window-width 607
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no username)
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2015-01-07 (0 days ago)
  VarLogDistupgradeTermlog:

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1408258/+subscriptions