[Bug 2044414] Re: "unresolvable problem occurred while calculating the upgrade" during d-r-u to mantic

[Rüdiger Kupper]

Possible fix see: https://askubuntu.com/questions/1492195/upgrade-to-
ubuntu-23-10-fails-cant-mark-ubuntu-desktop-for-upgrade

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https://bugs.launchpad.net/bugs/2044414

Title:
  "unresolvable problem occurred while calculating the upgrade" during
  d-r-u to mantic

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

Bug description:
  i've hit this on 2 of 3 machines i've upgrade so far going from lunar
  to mantic

  ######
  Checking package manager
  Reading package lists... Done    
  Building dependency tree... Done 
  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. 
  #######

  it's basically the same problem (and solution) as this:
  https://askubuntu.com/questions/1492195/upgrade-to-ubuntu-23-10-fails-
  cant-mark-ubuntu-desktop-for-upgrade

  in apt.log:

  #######
  Done
    MarkInstall ubuntu-desktop:amd64 < 1.501 -> 1.524 @ii umU Ib > FU=1
    Upgrading ubuntu-desktop-minimal:amd64 < 1.501 | 1.524 @ii umH > due to ubuntu-desktop:amd64
      MarkInstall ubuntu-desktop-minimal:amd64 < 1.501 -> 1.524 @ii umU Ib > FU=0
      Installing gnome-shell-extension-ubuntu-tiling-assistant:amd64 as Depends of ubuntu-desktop-minimal:amd64
        MarkInstall gnome-shell-extension-ubuntu-tiling-assistant:amd64 < none -> 44-1ubuntu1 @un uN Ib > FU=0
        Installing gnome-shell:amd64 as Depends of gnome-shell-extension-ubuntu-tiling-assistant:amd64
          Ignore MarkInstall of gnome-shell:amd64 < 44.3-0ubuntu1.1 | 45.1-0ubuntu1 @ii pumH > as its mode (Keep) is protected
          gnome-shell-extension-ubuntu-tiling-assistant:amd64 Depends on gnome-shell:amd64 < 44.3-0ubuntu1.1 | 45.1-0ubuntu1 @ii pumH > (>= 45~) can't be satisfied! (dep)
        ubuntu-desktop-minimal:amd64 Depends on gnome-shell-extension-ubuntu-tiling-assistant:amd64 < none @un H > can't be satisfied! (dep)
      ubuntu-desktop:amd64 Depends on gnome-shell-extension-ubuntu-tiling-assistant:amd64 < none @un H > can't be satisfied! (dep)
  Starting pkgProblemResolver with broken count: 1
  Starting 2 pkgProblemResolver with broken count: 1
  Investigating (0) ubuntu-desktop:amd64 < 1.501 -> 1.524 @ii pumU Ib >
  Broken ubuntu-desktop:amd64 Depends on gnome-shell-extension-ubuntu-tiling-assistant:amd64 < none @un mH >
    Considering gnome-shell-extension-ubuntu-tiling-assistant:amd64 1 as a solution to ubuntu-desktop:amd64 10001
  Done
  #######

  the same solution worked:

  #######
  sudo apt reinstall gnome-shell-extension-ubuntu-tiling-assistant
  sudo apt reinstall ubuntu-desktop
  sudo do-release-upgrade
  #######

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