Not able to update from 12.04 to 14.04

Bug #1540189 reported by WS on 2016-02-01
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
update-manager (Ubuntu)
Undecided
Unassigned

Bug Description

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

If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.19
ProcVersionSignature: Ubuntu 3.2.0-50.76-generic 3.2.48
Uname: Linux 3.2.0-50-generic i686
ApportVersion: 2.0.1-0ubuntu17.14
Architecture: i386
Date: Sun Jan 31 20:42:11 2016
GsettingsChanges:
 com.ubuntu.update-manager first-run false
 com.ubuntu.update-manager launch-time 1454290316
 com.ubuntu.update-manager show-details true
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
Symptom: ubuntu-release-upgrader-core
UpgradeStatus: Upgraded to precise on 2016-02-01 (0 days ago)
VarLogDistupgradeTermlog:

WS (wsarge2010) wrote :
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