Public bug reported: Hello,
Here is my configuration : lsb_release -rd Description: Ubuntu 16.04 LTS Release: 16.04 apt-cache policy synaptic synaptic: Installed: 0.83 Candidate: 0.83 Version table: *** 0.83 500 500 http://ch.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages 100 /var/lib/dpkg/status uname -a Linux mparchet-W240EU-W250EUQ-W270EUQ 4.4.0-22-generic #39-Ubuntu SMP Thu May 5 16:53:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Problem : When I open sysaptic, I get this message : E: The value 'stable' is invalid for APT::Default-Release as such a release is not available in the sources E: _cache->open() failed, please report. Could you help me to fix this bug ? Best regards Battant ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: synaptic 0.83 ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 Date: Thu May 12 09:51:16 2016 ExecutablePath: /usr/sbin/synaptic InstallationDate: Installed on 2015-10-01 (223 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) SourcePackage: synaptic UpgradeStatus: Upgraded to xenial on 2016-04-26 (15 days ago) ** Affects: synaptic (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug third-party-packages xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1580911 Title: E: The value 'stable' is invalid for APT::Default-Release as such a release is not available in the sources E: _cache->open() failed, please report. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/1580911/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs