[Bug 2020159] Re: update Ubuntu 20.04.1 LTS to Ubuntu 22.04 LTS error

[Nick Rosbrook]

*** This bug is a duplicate of bug 1970018 ***
    https://bugs.launchpad.net/bugs/1970018

Reviewing the files from your upgrade attempt, you have installed
packages from the deadsnakes PPA. Some of the packages installed are
newer than those in the official archive, which is keeping some python
packages installed which then prevents the upgrade from being
calculated. Please try using the ppa-purge tool to remove packages
installed from ppa:deadsnakes/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: deadsnakes-ppa

** This bug has been marked a duplicate of bug 1970018
   Cannot upgrade to ubuntu 21.10 from ubuntu 20.04.

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https://bugs.launchpad.net/bugs/2020159

Title:
  update Ubuntu 20.04.1 LTS to Ubuntu 22.04 LTS error

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

Bug description:
  An unresolvable problem occurred while calculating the upgrade.

  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 1:20.04.29 [origin: unknown]
  ProcVersionSignature: Ubuntu 5.4.0-148.165-generic 5.4.231
  Uname: Linux 5.4.0-148-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.26
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Fri May 19 14:00:00 2023
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2023-05-19 (0 days ago)

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