[Bug 1897956] Re: While upgrading to Ubuntu 20.04.1, it said that the upgrade couldn't be calculated, and stopped.

[Eduardo Alberto Bardales España]

The screenshot shows that the error occurred in the step 'Configuring new software channels' of the 'Complete distribution upgrade'.
The error message only says that the upgrade couldn't be calculated, that an 'unsolvable error' happened while calculating the upgrade. The rest of the message are only instructions to seek help about it.

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https://bugs.launchpad.net/bugs/1897956

Title:
  While upgrading to Ubuntu 20.04.1, it said that the upgrade couldn't
  be calculated, and stopped.

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

Bug description:
  I am upgrading from ubuntu 18.04. It is possible that the wording of
  my description is inaccurate, because my system is in Spanish, and I
  am translating what it said to me.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  ProcVersionSignature: Ubuntu 4.15.0-118.119-generic 4.15.18
  Uname: Linux 4.15.0-118-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: X-Cinnamon
  Date: Wed Sep 30 12:44:20 2020
  InstallationDate: Installed on 2017-02-15 (1322 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-09-30 (0 days ago)
  VarLogDistupgradeTermlog:

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