[Bug 2000428] Re: Upgrade error (20.04 to 22.04): Could not calculate the upgrade

[Nick Rosbrook]

*** This bug is a duplicate of bug 1987720 ***
    https://bugs.launchpad.net/bugs/1987720

Reviewing the files from your upgrade attempt, you have installed
packages from the remmina-ppa-team/remmina-next PPA. Some of the
packages installed are newer than those in the official archive, which
is preventing the upgrade from being calculated. Please try running ppa-
purge ppa:remmina-ppa-team/remmina-next to remove packages installed
from that PPA. After that you can try upgrading again and if it still
fails open a new bug report. Thanks and good luck!

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Invalid

** Tags added: remmina-next-ppa

** This bug has been marked a duplicate of bug 1987720
   update from 20.04 to 22.04 breaks due to packages from ppa:remmina-ppa-team/remmina-next

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https://bugs.launchpad.net/bugs/2000428

Title:
  Upgrade error (20.04 to 22.04): Could not calculate the upgrade

Status in ubuntu-release-upgrader package in Ubuntu:
  Invalid

Bug description:
  Checking package manager
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done

  Calculating the changes

  Calculating the changes

  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
  package to remove software from a Launchpad PPA and
  try the upgrade again.

  If none of this applies, then please report this bug using the
  command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If
  you want to investigate this yourself the log files in
  '/var/log/dist-upgrade' will contain details about the upgrade.
  Specifically, look at 'main.log' and 'apt.log'.

  
  Restoring original system state

  Aborting
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.39
  ProcVersionSignature: Ubuntu 5.4.0-135.152-generic 5.4.212
  Uname: Linux 5.4.0-135-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.25
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Dec 25 18:36:36 2022
  InstallationDate: Installed on 2019-09-12 (1199 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-12-25 (0 days ago)

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