[Bug 1876088] [NEW] Unable to upgrade to ubuntu 20.04

[Ritesh Kumar Singh]

Public bug reported:

I was going through the method provided on your website and not working. 
This is error was shown: 
Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: ubuntu-release-upgrader-core 1:19.10.15.4
ProcVersionSignature: Ubuntu 5.3.0-51.44-generic 5.3.18
Uname: Linux 5.3.0-51-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.8
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 30 17:17:05 2020
InstallationDate: Installed on 2019-03-07 (420 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to eoan on 2020-04-30 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade eoan

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https://bugs.launchpad.net/bugs/1876088

Title:
  Unable to upgrade to ubuntu 20.04

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

Bug description:
  I was going through the method provided on your website and not working. 
  This is error was shown: 
  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: ubuntu-release-upgrader-core 1:19.10.15.4
  ProcVersionSignature: Ubuntu 5.3.0-51.44-generic 5.3.18
  Uname: Linux 5.3.0-51-generic x86_64
  ApportVersion: 2.20.11-0ubuntu8.8
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Apr 30 17:17:05 2020
  InstallationDate: Installed on 2019-03-07 (420 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to eoan on 2020-04-30 (0 days ago)
  VarLogDistupgradeTermlog:

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