[Bug 1718505] [NEW] could not calculate the upgrade.

[Lonwabo]

Public bug reported:

When I attempt to upgrade I receive this notice:

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

 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

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.22
ProcVersionSignature: Ubuntu 3.2.0-126.169-generic 3.2.79
Uname: Linux 3.2.0-126-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.0.1-0ubuntu17.15
Architecture: amd64
Date: Wed Sep 20 19:44:18 2017
GsettingsChanges:
 com.ubuntu.update-manager first-run false
 com.ubuntu.update-manager launch-time 1505929219
 com.ubuntu.update-manager show-details true
 com.ubuntu.update-manager window-height 658
 com.ubuntu.update-manager window-width 500
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_ZA:en
 TERM=xterm
 PATH=(custom, no username)
 LANG=en_ZA.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
Symptom: ubuntu-release-upgrader-core
UpgradeStatus: Upgraded to precise on 2017-09-20 (0 days ago)
VarLogDistupgradeTermlog:

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


** Tags: amd64 apport-bug dist-upgrade precise running-unity third-party-packages

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https://bugs.launchpad.net/bugs/1718505

Title:
  could not calculate the upgrade.

Status in update-manager package in Ubuntu:
  New

Bug description:
  When I attempt to upgrade I receive this notice:

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

   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

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.22
  ProcVersionSignature: Ubuntu 3.2.0-126.169-generic 3.2.79
  Uname: Linux 3.2.0-126-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.0.1-0ubuntu17.15
  Architecture: amd64
  Date: Wed Sep 20 19:44:18 2017
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1505929219
   com.ubuntu.update-manager show-details true
   com.ubuntu.update-manager window-height 658
   com.ubuntu.update-manager window-width 500
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_ZA:en
   TERM=xterm
   PATH=(custom, no username)
   LANG=en_ZA.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2017-09-20 (0 days ago)
  VarLogDistupgradeTermlog:

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