[Bug 1902408] Re: cannot upgrade to Ubuntu 20.04

[Brian Murray]

*** This bug is a duplicate of bug 1889250 ***
    https://bugs.launchpad.net/bugs/1889250

Reviewing the files from your upgrade attempt you have installed nodejs
from a location other than the offical Ubuntu archive. This version of
nodejs is greater than the one in the official archive and is keeping
some python packages installed which then prevents the upgrade from
being calculated. Please remove nodejs along with any other packages
from that archive and disable the archive. After that you can try
upgrading again and if it still fails open a new bug report. Thanks and
good luck!

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Invalid

** Tags added: nodesource-nodejs

** This bug has been marked a duplicate of bug 1889250
   Unable to calculate the upgrade to 20.04 due to nodejs from nodesource

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https://bugs.launchpad.net/bugs/1902408

Title:
  cannot upgrade to Ubuntu 20.04

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

Bug description:
  I posted here: https://askubuntu.com/questions/1288704/problems-
  removing-ppa-using-ppa-purge-for-upgrade-to-ubuntu-20

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.40
  ProcVersionSignature: Ubuntu 5.4.0-52.57~18.04.1-generic 5.4.65
  Uname: Linux 5.4.0-52-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Nov  1 00:01:48 2020
  InstallationDate: Installed on 2019-09-16 (411 days ago)
  InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-11-01 (0 days ago)

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