[Bug 1694344] Re: Unable to upgrade to 17.04 immediately after upgrading to 16.10

[Brian Murray]

*** This bug is a duplicate of bug 1611737 ***
    https://bugs.launchpad.net/bugs/1611737

** This bug has been marked a duplicate of bug 1611737
   Can't upgrade from 14.04 to 16.04 if ros-indigo-desktop-full or ros-indigo-perception installed from ROS servers

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https://bugs.launchpad.net/bugs/1694344

Title:
  Unable to upgrade to 17.04 immediately after upgrading to 16.10

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

Bug description:
  Reporting as suggested by the upgrade tool. The text of the dialog is:

  Could not calculate 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.

  -----

  I was running 16.04 previously, just upgraded to 16.10. Then I wanted
  to upgrade to 17.04 but the dialog described above came up while
  trying to do the upgrade. When reporting the tool suggested bug
  #1611737 might be related. It talks about ROS in the summary and I did
  install ROS earlier today (while I was still on 16.04). Not sure if
  it's related at all in my case.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: ubuntu-release-upgrader-core 1:16.10.10
  ProcVersionSignature: Ubuntu 4.8.0-53.56-generic 4.8.17
  Uname: Linux 4.8.0-53-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.3-0ubuntu8.3
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Mon May 29 16:45:17 2017
  InstallationDate: Installed on 2015-11-01 (575 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to yakkety on 2017-05-29 (0 days ago)
  VarLogDistupgradeTermlog:

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