[Bug 1988659] Re: Upgrade to latest LTS version fails

[Tsjoecha]

*** This bug is a duplicate of bug 1980574 ***
    https://bugs.launchpad.net/bugs/1980574

Hi Nick,

I receive this error when executing the command through sudo.

Warning:  Could not find package list for PPA: ppa:pipewire-
debian/pipewire-upstream ppa

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https://bugs.launchpad.net/bugs/1988659

Title:
  Upgrade to latest LTS version fails

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

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.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.39
  ProcVersionSignature: Ubuntu 5.15.0-46.49~20.04.1-generic 5.15.39
  Uname: Linux 5.15.0-46-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  Date: Sat Sep  3 21:20:01 2022
  InstallationDate: Installed on 2021-10-10 (328 days ago)
  InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-09-03 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2022-08-14T17:11:40.143498

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