Public bug reported: by update from 12.04 to 14.04.1 i had this problem
ProblemType: Package DistroRelease: Ubuntu 14.04 Package: unity-2d-panel 5.12.0-0ubuntu1.1 ProcVersionSignature: Ubuntu 3.2.0-76.111-generic 3.2.66 Uname: Linux 3.2.0-76-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.6 AptOrdering: unity-2d-panel: Configure unity-2d-spread: Configure unity-2d-shell: Configure unity-2d: Configure ubuntu-desktop: Configure Architecture: amd64 Date: Tue Feb 10 19:28:03 2015 DuplicateSignature: package:unity-2d-panel:5.12.0-0ubuntu1.1:no package named `unity-2d-panel' is installed, cannot configure ErrorMessage: no package named `unity-2d-panel' is installed, cannot configure InstallationDate: Installed on 2012-05-19 (997 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) SourcePackage: unity-2d Title: package unity-2d-panel 5.12.0-0ubuntu1.1 failed to install/upgrade: no package named `unity-2d-panel' is installed, cannot configure UpgradeStatus: Upgraded to trusty on 2015-02-04 (5 days ago) ** Affects: unity-2d (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1420434 Title: package unity-2d-panel 5.12.0-0ubuntu1.1 failed to install/upgrade: no package named `unity-2d-panel' is installed, cannot configure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-2d/+bug/1420434/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs