[Bug 1886803] Re: error updating ubuntu to version 19.10

[Launchpad Bug Tracker]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no
activity for 60 days.]

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1886803

Title:
  error updating ubuntu to version 19.10

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

Bug description:
  when trying to upgrade from ubuntu version 18.04.4 to version 19.10, an error occurs
  Failed to calculate system update. An unsolvable problem occurred while calculating updates. This was probably due to: * Unofficial software packages not supported by Ubuntu Please use the 'ppa-purge' command from the ppa-purge package to remove the software from Launchpad PPA and try updating again.
  I tried various solutions, but nothing worked and the error still appears.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.37
  ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18
  Uname: Linux 5.3.0-62-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.15
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Jul  8 13:56:11 2020
  InstallationDate: Installed on 2019-09-14 (298 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=ru_RU.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-07-08 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2019-10-19T16:49:38.839176

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