[Bug 1450612] Re: uprade to ubuntu 15.04 from 14.10 failed

[Ubuntu Foundations Team Bug Bot]

*** This bug is a duplicate of bug 1069133 ***
    https://bugs.launchpad.net/bugs/1069133

Reviewing the files from your upgrade attempt you seem to have enabled
the xorg-edgers-ppa.  This will prevent the upgrade as that PPA contains
different versions of packages essential to Ubuntu.  The page,
https://launchpad.net/~xorg-edgers/+archive/ppa, contains details on to
how to revert to the official Xorg packages.  Thanks.

[This is an automated message.  I apologize if it reached you
inappropriately; please just reply to this message indicating so.]

** Tags added: ppa

** Tags added: xorg-edgers-ppa

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

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https://bugs.launchpad.net/bugs/1450612

Title:
  uprade to ubuntu 15.04 from 14.10 failed

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

Bug description:
  Kon de opwaardering niet berekenen

  Er is een onoplosbaar probleem geconstateerd bij het berekenen van de
  opwaardering.

   Dit kan veroorzaakt worden door:
   * Opwaarderen naar een voorlopige versie van Ubuntu
   * Uitvoering van de huidige voorlopige versie van Ubuntu
   * Onofficiële softwarepakketten die niet door Ubuntu geleverd zijn.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: ubuntu-release-upgrader-core 1:14.10.10
  ProcVersionSignature: Ubuntu 3.16.0-36.48-generic 3.16.7-ckt9
  Uname: Linux 3.16.0-36-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Thu Apr 30 21:50:55 2015
  InstallationDate: Installed on 2014-04-22 (373 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to utopic on 2015-04-30 (0 days ago)
  VarLogDistupgradeTermlog:

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