[Bug 1752955] Re: Updater fails with "Could not calculate the upgrade"

[Ubuntu Foundations Team Bug Bot]

** Tags added: artful2bionic

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https://bugs.launchpad.net/bugs/1752955

Title:
  Updater fails with "Could not calculate the upgrade"

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

Bug description:
  I'm trying to upgrade my Ubuntu 17.10 installation to Ubuntu 18.04
  using "sudo do-release-upgrade -d".

  This fails with the following error message:

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: ubuntu-release-upgrader-core 1:17.10.10
  ProcVersionSignature: Ubuntu 4.13.0-36.40-generic 4.13.13
  Uname: Linux 4.13.0-36-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.7-0ubuntu3.7
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Budgie:GNOME
  Date: Fri Mar  2 19:28:10 2018
  InstallationDate: Installed on 2018-01-09 (51 days ago)
  InstallationMedia: Ubuntu-Budgie 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to artful on 2018-03-02 (0 days ago)

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