[Bug 1684340] Re: Cannot upgrade from 16.10 to 17.04: "An unresolvable problem occurred while calculating the upgrade. "

[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

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1684340

Title:
  Cannot upgrade from 16.10 to 17.04: "An unresolvable problem occurred
  while calculating the upgrade. "

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

Bug description:
  Tried to run do-release-upgrade, after downloading packages it
  resulted in this:

  Calculating the changes

  Calculating the changes

  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. 

  
  Restoring original system state

  Aborting

  
  Info: 

  - lsb_release -rd

  Description:    Ubuntu 16.10
  Release:        16.10

  - apt-cache policy ubuntu-release-upgrader-core
  ubuntu-release-upgrader-core:
    Installed: 1:16.10.8
    Candidate: 1:16.10.10
    Version table:
       1:16.10.10 500
          500 http://ca.archive.ubuntu.com/ubuntu yakkety-updates/main amd64 Packages
          500 http://ca.archive.ubuntu.com/ubuntu yakkety-updates/main i386 Packages
   *** 1:16.10.8 100
          100 /var/lib/dpkg/status
       1:16.10.6 500
          500 http://ca.archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
          500 http://ca.archive.ubuntu.com/ubuntu yakkety/main i386 Packages
          500 http://cz.archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
          500 http://cz.archive.ubuntu.com/ubuntu yakkety/main i386 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: ubuntu-release-upgrader-core 1:16.10.8
  ProcVersionSignature: Ubuntu 4.8.0-30.32-generic 4.8.6
  Uname: Linux 4.8.0-30-generic x86_64
  ApportVersion: 2.20.3-0ubuntu8
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: XFCE
  Date: Wed Apr 19 19:25:55 2017
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2016-02-22 (422 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to yakkety on 2017-04-20 (0 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1684340/+subscriptions