[Bug 1725176] Re: Could not upgrade to 17.10

[Suresh Anaparthi]

Saw this alert before it stopped upgrade

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.

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https://bugs.launchpad.net/bugs/1725176

Title:
  Could not upgrade to 17.10

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

Bug description:
  I tried to upgrade to 17.10 from 17.04

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: ubuntu-release-upgrader-core 1:16.10.10
  ProcVersionSignature: Ubuntu 4.8.0-59.64-generic 4.8.17
  Uname: Linux 4.8.0-59-generic x86_64
  ApportVersion: 2.20.3-0ubuntu8.7
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Fri Oct 20 10:10:58 2017
  InstallationDate: Installed on 2016-11-29 (324 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to zesty on 2017-10-20 (0 days ago)

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