Public bug reported: currently running 15.10 version of ubtuntu which was upgraded from 14.04, Moreover am new to ubuntu not a veteran. Help me to find out the root cause problem. { This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu }
ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: ubuntu-release-upgrader-core 1:15.10.14.4 ProcVersionSignature: Ubuntu 4.2.0-38.45-generic 4.2.8-ckt10 Uname: Linux 4.2.0-38-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: Unity Date: Mon Jun 20 22:32:34 2016 InstallationDate: Installed on 2016-06-15 (5 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to wily on 2016-06-20 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug dist-upgrade third-party-packages wily -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1594460 Title: Could not calculate the upgrade An unresolvable problem occurred while calculating the upgrade. I've done upgrade 15.10 from 14.04. trying to upgrade 16 hit by this error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1594460/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs