Public bug reported: I had a previous problem with some unofficial xorg ppa, I removed it using ppa-purge and tried to upgrade again but I got the same message: "Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade. This was likely caused by: * Unofficial software packages not provided by Ubuntu Please use the tool 'ppa-purge' from the ppa-purge (...)" Description: Ubuntu 18.04.5 LTS Release: 18.04 Software Center I want to upgrade from 18.04 to 20.3 version, but i got This message: "An unresolvable problem occurred while calculating the upgrade." ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.38 ProcVersionSignature: Ubuntu 5.4.0-48.52~18.04.1-generic 5.4.60 Uname: Linux 5.4.0-48-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.17 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: ubuntu:GNOME Date: Sat Oct 3 09:20:51 2020 InstallationDate: Installed on 2019-08-13 (416 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2020-10-03 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic dist-upgrade ** Attachment added: "logs" https://bugs.launchpad.net/bugs/1898368/+attachment/5417111/+files/log.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1898368 Title: I had a previous problem with some unofficial xorg ppa, I removed it using ppa-purge and tried to upgrade again but I only got the same result To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1898368/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs