Public bug reported: when I try upgrade to Ubuntu 18.04 from 16.04 the upgrade software stop and show the message "There is a unsolve problem, an error occurred while calculating the update.". After three possible cause are showed: Upgrade to a pre-release to run from the pre-release version Use non-official ubuntu package.
Neither above are applicable to me. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubuntu-release-upgrader-core 1:16.04.25 ProcVersionSignature: Ubuntu 4.15.0-30.32~16.04.1-generic 4.15.18 Uname: Linux 4.15.0-30-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: KDE Date: Mon Aug 13 22:30:11 2018 InstallationDate: Installed on 2017-04-01 (499 days ago) InstallationMedia: Kubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to xenial on 2018-08-14 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug dist-upgrade 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/1786876 Title: I can't upgrade to Bionic Beaver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1786876/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs