[Bug 1776784] Re: I have been trying to upgrade from Ubuntu 16 to Ubuntu 17 but can't

[Brian Murray]

You seem to have python3 installed from a PPA which is causing the
upgrade to fail to calculate. Please remove whatever PPA you are using
that provides python3 using the tool ppa-purge from the package ppa-
purge.  Thanks and good luck!

  Installing python3.6 as Depends of gedit
    python3.6:i386 Depends on libpython3.6-stdlib [ i386 ] < 3.6.3-1+xenial2 > ( python ) (= 3.6.3-1ubuntu1) can't be satisfied!


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

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https://bugs.launchpad.net/bugs/1776784

Title:
  I have been trying to upgrade from Ubuntu 16 to Ubuntu 17 but can't

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

Bug description:
  This is the message I recieve when trying to upgrade:

  Could not determine the upgrade

  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 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.4.0-128.154-generic 4.4.131
  Uname: Linux 4.4.0-128-generic i686
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: i386
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Thu Jun 14 01:32:08 2018
  InstallationDate: Installed on 2014-03-13 (1553 days ago)
  InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release i386 (20140204)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-06-14 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2018-04-28T00:53:16.736566

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