Public bug reported: I tried to make the upgrade from Ubuntu 12.04 LTS to 14.04.2 LTS and during the calculation appeared the following error: 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 1:0.156.14.18 ProcVersionSignature: Ubuntu 3.2.0-77.112-generic-pae 3.2.66 Uname: Linux 3.2.0-77-generic-pae i686 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu17.8 Architecture: i386 Date: Sat Feb 21 05:58:29 2015 GsettingsChanges: com.ubuntu.update-manager first-run false com.ubuntu.update-manager launch-time 1424494406 com.ubuntu.update-manager show-details true com.ubuntu.update-manager window-height 709 com.ubuntu.update-manager window-width 600 InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429) MarkForUpload: True PackageArchitecture: all SourcePackage: update-manager Symptom: ubuntu-release-upgrader-core UpgradeStatus: Upgraded to precise on 2015-02-21 (0 days ago) VarLogDistupgradeTermlog: ** Affects: update-manager (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug dist-upgrade i386 precise running-unity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1424126 Title: An unresolvable problem occurred while calculating the upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1424126/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs