[Bug 1988324] Re: Upgrade from 20.04 to 22.04 fail "Could not calculate the upgrade"

[Nick Rosbrook]

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

It looks like packages from ppa:remmina-ppa-team/remmina-next are
causing the issue:

  Installing gnome-remote-desktop as Recommends of ubuntu-desktop-minimal
    MarkInstall gnome-remote-desktop:amd64 < none -> 42.3-0ubuntu1 @un uN Ib > FU=0
    Installing libfreerdp-server2-2 as Depends of gnome-remote-desktop
      libfreerdp-server2-2:amd64 Depends on libfreerdp2-2:amd64 < 2.7.0+git202204251304-0+remmina202205020710.r40ee5d3bc.da996883ab~ubuntu20.04.1 @ii mK > (= 2.6.1+dfsg1-3ubuntu2.2) can't be satisfied!

Please try running `ppa-purge ppa:remmina-ppa-team/remmina-next` to
remove the problematic package(s), and then try the upgrade again.

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

** This bug has been marked a duplicate of bug 1987720
   update from 20.04 to 22.04 breaks during calculating new sources

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https://bugs.launchpad.net/bugs/1988324

Title:
  Upgrade from 20.04 to 22.04 fail "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'.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.39
  ProcVersionSignature: Ubuntu 5.4.0-125.141-generic 5.4.195
  Uname: Linux 5.4.0-125-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Aug 31 12:37:07 2022
  InstallationDate: Installed on 2017-02-17 (2021 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-08-31 (0 days ago)

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