[Bug 1578886] Re: Upgrading from Ubuntu 14.04.4 to 16.04 Failed due to Third-Party Packages

[Ubuntu Foundations Team Bug Bot]

*** This bug is a duplicate of bug 1279762 ***
    https://bugs.launchpad.net/bugs/1279762

You seem to have installed the cinnamon package on Ubuntu 13.10.
Unfortunately, that package is not available yet for 14.04. To upgrade
to Ubuntu 14.04 LTS you'll need to either wait for a fix for cinnamon to
be available or uninstall the package and then upgrade.

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inappropriately; please just reply to this message indicating so.]

** Tags added: cinnamon

** This bug has been marked a duplicate of bug 1279762
   upgrade to 14.04 from 13.10 or 12.04 failed - cinnamon fails to upgrade

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

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https://bugs.launchpad.net/bugs/1578886

Title:
  Upgrading from Ubuntu 14.04.4 to 16.04 Failed due to Third-Party
  Packages

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

Bug description:
  
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py:86: Warning: g_object_ref: assertion 'object->ref_count > 0' failed

  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py:86:
  Warning: g_object_unref: assertion 'object->ref_count > 0' failed

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.13.0-85.129-generic 3.13.11-ckt36
  Uname: Linux 3.13.0-85-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  Date: Thu May  5 16:00:45 2016
  InstallationDate: Installed on 2014-12-28 (494 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_CA:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-05-05 (0 days ago)
  VarLogDistupgradeTermlog:

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