[Bug 2135821] Re: version upgrade error

[Nick Rosbrook]

This is because you have python3 packages installed from the deadsnakes
PPA. You need to remove those packages (not just the PPA sources.list
configuration), and then try again.

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

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https://bugs.launchpad.net/bugs/2135821

Title:
  version upgrade error

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

Bug description:
  Could not calculate the upgrade

  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'. 

  
  Restoring original system state

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: ubuntu-release-upgrader-core 1:22.04.20
  ProcVersionSignature: Ubuntu 6.8.0-90.91~22.04.1-generic 6.8.12
  Uname: Linux 6.8.0-90-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.10
  Architecture: amd64
  CasperMD5CheckResult: pass
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Dec 13 12:59:53 2025
  InstallationDate: Installed on 2025-01-22 (324 days ago)
  InstallationMedia: Ubuntu 22.04.5 LTS "Jammy Jellyfish" - Release amd64 (20240911)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to jammy on 2025-12-13 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2025-12-13T12:32:06.044091

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