Public bug reported: when trying to upgrade from ubuntu version 18.04.4 to version 19.10, an error occurs Failed to calculate system update. An unsolvable problem occurred while calculating updates. This was probably due to: * Unofficial software packages not supported by Ubuntu Please use the 'ppa-purge' command from the ppa-purge package to remove the software from Launchpad PPA and try updating again. I tried various solutions, but nothing worked and the error still appears.
ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.37 ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18 Uname: Linux 5.3.0-62-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: ubuntu:GNOME Date: Wed Jul 8 13:56:11 2020 InstallationDate: Installed on 2019-09-14 (298 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=ru_RU.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2020-07-08 (0 days ago) VarLogDistupgradeTermlog: mtime.conffile..etc.update-manager.release-upgrades: 2019-10-19T16:49:38.839176 ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic dist-upgrade third-party-packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886803 Title: error updating ubuntu to version 19.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1886803/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs