[Bug 1837842] [NEW] Update-manager is not opening it says failed to open "usr/bin/update-manager" no such file or directory

[Manish Pathak]

Public bug reported:

Update-manager is not working it is giving error.sudo apt-get update is also giving errors that {Sub-process /usr/bin/dpkg returned an error code (1)}.Please Help!!
Thank You.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.34
ProcVersionSignature: Ubuntu 4.18.0-25.26~18.04.1-generic 4.18.20
Uname: Linux 4.18.0-25-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Thu Jul 25 12:07:51 2019
InstallationDate: Installed on 2019-07-09 (16 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)

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


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

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https://bugs.launchpad.net/bugs/1837842

Title:
  Update-manager is not opening it says failed to open "usr/bin/update-
  manager" no such file or directory

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

Bug description:
  Update-manager is not working it is giving error.sudo apt-get update is also giving errors that {Sub-process /usr/bin/dpkg returned an error code (1)}.Please Help!!
  Thank You.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.34
  ProcVersionSignature: Ubuntu 4.18.0-25.26~18.04.1-generic 4.18.20
  Uname: Linux 4.18.0-25-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Jul 25 12:07:51 2019
  InstallationDate: Installed on 2019-07-09 (16 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_IN:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_IN
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)

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