[Bug 1793413] Re: can't upgrade to 18.04

[Ubuntu Foundations Team Bug Bot]

** Tags added: xenial2bionic

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https://bugs.launchpad.net/bugs/1793413

Title:
  can't upgrade to 18.04

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

Bug description:
  Could not calculate the upgrade.

  Doesn't tell me what the problem is. I have unchecked all other
  software in "Software and Updates."

  Ubuntu 16.04.5 LTS

  Expected system to upgrade, or at least give me an error for what is
  wrong. Instead, I get a message saying that something could be wrong,
  with no pointers to where the error is.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.4.0-135.161-generic 4.4.140
  Uname: Linux 4.4.0-135-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Wed Sep 19 17:40:43 2018
  InstallationDate: Installed on 2016-09-15 (734 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-09-19 (0 days ago)

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