[Bug 1800741] Re: Unspecified error calculating changes for upgrade

[Brian Murray]

Thank you for taking the time to report this bug and helping to make
Ubuntu better. The error that you are a reporting is a conflict between
packages from the official Ubuntu archive and packages from a PPA. To
resolve this situation please deactivate PPAs using the tool 'ppa-purge'
which is provided by the ppa-purge package. Then try performing the
release upgrade again. Thanks in advance!

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

** Tags added: ppa-conflict

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https://bugs.launchpad.net/bugs/1800741

Title:
  Unspecified error calculating changes for upgrade

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

Bug description:
  Attempted 18.04 -> 18.10 upgrade.

  Having issues with Gnome on Xorg (logging in with Xorg won't load
  desktop and returns to login) since kernel update in the summer. Gnome
  of Wayland is functional, albeit incomplete. Running oilaf drivers for
  AMD RX 580.

  Not sure if this would be necessarily related.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.27
  ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
  Uname: Linux 4.15.0-38-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.4
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Tue Oct 30 17:54:19 2018
  InstallationDate: Installed on 2016-05-13 (900 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2018-10-30 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2018-10-19T17:35:38.523082

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