Public bug reported: not sure what kind of details are necessary, I was just installing Ubutntu MATE from software lib.
ProblemType: Package DistroRelease: Ubuntu 16.04 Package: libmpcdec6:amd64 2:0.1~r459-4.1build1 ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13 Uname: Linux 4.4.0-28-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2.1 AptdaemonVersion: 1.1.1+bzr982-0ubuntu14 Architecture: amd64 Date: Fri Jul 8 21:48:45 2016 Dependencies: gcc-6-base 6.0.1-0ubuntu1 libc6 2.23-0ubuntu3 libgcc1 1:6.0.1-0ubuntu1 multiarch-support 2.23-0ubuntu3 DuplicateSignature: package:libmpcdec6:amd64:2:0.1~r459-4.1build1 Processing triggers for ureadahead (0.100.0-19) ... ureadahead will be reprofiled on next reboot dpkg: error processing package libmpcdec6:amd64 (--configure): package libmpcdec6:amd64 is already installed and configured ErrorMessage: package libmpcdec6:amd64 is already installed and configured InstallationDate: Installed on 2016-06-24 (14 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) RelatedPackageVersions: dpkg 1.18.4ubuntu1.1 apt 1.2.12~ubuntu16.04.1 SourcePackage: dpkg Title: package libmpcdec6:amd64 2:0.1~r459-4.1build1 failed to install/upgrade: package libmpcdec6:amd64 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 need-duplicate-check xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1600406 Title: package libmpcdec6:amd64 2:0.1~r459-4.1build1 failed to install/upgrade: package libmpcdec6:amd64 is already installed and configured To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1600406/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs