Public bug reported: i was trying to uninstall gnome-shell which i installed earlier to use gnome desktop environment, but i changed my mind and decided to stick with unity again. when i tried to uninstall i got the errors.
ProblemType: Package DistroRelease: Ubuntu 15.04 Package: argyll-ref 1.6.3-4 ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2 Uname: Linux 3.19.0-25-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.2 AptdaemonVersion: 1.1.1+bzr982-0ubuntu3.1 Architecture: amd64 Date: Sat Aug 8 11:31:24 2015 DuplicateSignature: package:argyll-ref:1.6.3-4:package argyll-ref is already installed and configured ErrorMessage: package argyll-ref is already installed and configured InstallationDate: Installed on 2015-08-06 (1 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) PackageArchitecture: all RelatedPackageVersions: dpkg 1.17.25ubuntu1 apt 1.0.9.7ubuntu4.1 SourcePackage: dpkg Title: package argyll-ref 1.6.3-4 failed to install/upgrade: package argyll-ref is already installed and configured UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: dpkg (Ubuntu) Importance: Undecided Status: New ** Tags: already-installed amd64 apport-package vivid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1482847 Title: package argyll-ref 1.6.3-4 failed to install/upgrade: package argyll- ref is already installed and configured To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1482847/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs