[Bug 1769697] Re: upgraging kubuntu 17.10 to 18

[dino99]

Your issue is due to the installed ppas.
You need to downgrade to genuine version, via 'ppa-purge' for each ppa, and deactivate the others you cant downgrade (no equivalent into archive).
Then clean the system with bleachbit (as root, carefully select option), and reboot.
Next try to dist-upgrade might be easier.

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

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https://bugs.launchpad.net/bugs/1769697

Title:
  upgraging kubuntu 17.10 to 18

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

Bug description:
  An unresolvable problem occurred while calculating the upgrade.

   This can be caused by:
   * Upgrading to a pre-release version of Ubuntu
   * Running the current pre-release version of Ubuntu
   * Unofficial software packages not provided by Ubuntu

  If none of this applies, then please report this bug using the command
  'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: ubuntu-release-upgrader-core 1:17.10.11
  ProcVersionSignature: Ubuntu 4.13.0-39.44-generic 4.13.16
  Uname: Linux 4.13.0-39-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.8
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Mon May  7 18:49:38 2018
  InstallationDate: Installed on 2018-02-08 (88 days ago)
  InstallationMedia: Kubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to artful on 2018-05-07 (0 days ago)
  VarLogDistupgradeTermlog:

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