[Bug 1831305] [NEW] I can't upgrade to Ubuntu 18.1 from Ubuntu 18.04

[Vekariya Sachin Jaysukhbhai]

Public bug reported:

When I tried to upgrade, it show me error to remove PPA reposiory. I
remove all other PPA still it show me error.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.33
ProcVersionSignature: Ubuntu 4.18.0-21.22~18.04.1-generic 4.18.20
Uname: Linux 4.18.0-21-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sat Jun  1 11:00:18 2019
InstallationDate: Installed on 2019-05-11 (20 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2019-06-01 (0 days ago)
mtime.conffile..etc.update-manager.release-upgrades: 2019-06-01T10:54:45.376432

** 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/1831305

Title:
  I can't upgrade to Ubuntu 18.1 from Ubuntu 18.04

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

Bug description:
  When I tried to upgrade, it show me error to remove PPA reposiory. I
  remove all other PPA still it show me error.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.33
  ProcVersionSignature: Ubuntu 4.18.0-21.22~18.04.1-generic 4.18.20
  Uname: Linux 4.18.0-21-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.6
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Jun  1 11:00:18 2019
  InstallationDate: Installed on 2019-05-11 (20 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2019-06-01 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2019-06-01T10:54:45.376432

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