Public bug reported: I am getting error message when I try to start Synaptics package manager:
E: The value 'wily' is invalid for APT::Default-Release as such a release is not available in the sources E: _cache->open() failed, please report. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: synaptic 0.83 ProcVersionSignature: Ubuntu 4.4.0-21.37-lowlatency 4.4.6 Uname: Linux 4.4.0-21-lowlatency x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 Date: Sat Apr 23 15:15:49 2016 ExecutablePath: /usr/sbin/synaptic InstallationDate: Installed on 2011-11-13 (1623 days ago) InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) SourcePackage: synaptic UpgradeStatus: Upgraded to xenial on 2016-04-23 (0 days ago) ** Affects: synaptic (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574007 Title: synaptics refuses to run after upgrade to Xenial from Wily To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/1574007/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs