[Bug 2009816] Re: Upgrade aborted with an error, coud not calculate upgrade, unresolvable problem occured while calculating the upgrade

[Seth Arnold]

*** This bug is a duplicate of bug 2009895 ***
    https://bugs.launchpad.net/bugs/2009895

** This bug has been marked a duplicate of bug 2009895
   python3-ldb version number breaks 20.04 to 22.04 upgrade

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https://bugs.launchpad.net/bugs/2009816

Title:
  Upgrade aborted with an error, coud not calculate upgrade,
  unresolvable problem occured while calculating the upgrade

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

Bug description:
  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'.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.40
  ProcVersionSignature: Ubuntu 5.4.0-144.161-generic 5.4.229
  Uname: Linux 5.4.0-144-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.25
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Mar  9 15:20:39 2023
  InstallationDate: Installed on 2023-03-08 (0 days ago)
  InstallationMedia: Ubuntu 18.04.6 LTS "Bionic Beaver" - Release amd64 (20210915)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2023-03-09 (0 days ago)
  VarLogDistupgradeTermlog:

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