[Bug 1510841] Re: "Could not calculate the upgrade" due to multiple metapackages being installed

[Maksym]

Same issue when upgrading from 18.04 LTS to 19.04

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https://bugs.launchpad.net/bugs/1510841

Title:
  "Could not calculate the upgrade" due to multiple metapackages being
  installed

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

Bug description:
  Trying to upgrade from 15.04 to 15.10.
  Non-core ppas disabled.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: ubuntu-release-upgrader-core 1:15.04.14.2
  ProcVersionSignature: Ubuntu 3.19.0-31.36-generic 3.19.8-ckt7
  Uname: Linux 3.19.0-31-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.17.2-0ubuntu1.7
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: MATE
  Date: Wed Oct 28 10:53:56 2015
  InstallationDate: Installed on 2014-11-27 (334 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to vivid on 2015-10-28 (0 days ago)
  VarLogDistupgradeTermlog:

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