[Bug 1899438] [NEW] i cannot upgrade ubuntu 20.04, always problem apt, asks me to ppa-purge, but I dont know what to do

[Emilio Sanchez Cortezon]

Public bug reported:

There is a problem during the upgrade to 20.04. It says "unofficial software packages not provide by Ubuntu.....remove  software.
I have removed problem with dependencies in "other software and synaptic". I have removed old ppa in terminal. I try again but there is always the same problem.
The other option, looking in the log files, I do not know where to find the "var" folder.
Thank you for taking your time reading this.

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
NonfreeKernelModules: nvidia
ApportVersion: 2.20.9-0ubuntu7.18
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Mon Oct 12 10:11:26 2020
InstallationDate: Installed on 2015-07-23 (1908 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-10-12 (0 days ago)
VarLogDistupgradeTermlog:

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


** Tags: amd64 apport-bug bionic dist-upgrade third-party-packages

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https://bugs.launchpad.net/bugs/1899438

Title:
  i cannot upgrade ubuntu 20.04, always problem apt, asks me to ppa-
  purge, but I dont know what to do

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

Bug description:
  There is a problem during the upgrade to 20.04. It says "unofficial software packages not provide by Ubuntu.....remove  software.
  I have removed problem with dependencies in "other software and synaptic". I have removed old ppa in terminal. I try again but there is always the same problem.
  The other option, looking in the log files, I do not know where to find the "var" folder.
  Thank you for taking your time reading this.

  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
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu7.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Oct 12 10:11:26 2020
  InstallationDate: Installed on 2015-07-23 (1908 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-10-12 (0 days ago)
  VarLogDistupgradeTermlog:

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