[Bug 1657250] Re: package tar 1.28-2.1ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

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** Tags removed: need-duplicate-check

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Title:
  package tar 1.28-2.1ubuntu0.1 failed to install/upgrade: subprocess
  installed post-installation script returned error exit status 2

Status in tar package in Ubuntu:
  New

Bug description:
  Issue is i mistakenly deleted dpkg folder so so many errors arises due
  to that.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: tar 1.28-2.1ubuntu0.1
  ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
  Uname: Linux 4.4.0-31-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  Date: Tue Jan 17 21:05:48 2017
  DuplicateSignature:
   package:tar:1.28-2.1ubuntu0.1
   Setting up tar (1.28-2.1ubuntu0.1) ...
   update-alternatives: error: cannot scan directory '/var/lib/dpkg/alternatives': No such file or directory
   dpkg: error processing package tar (--configure):
    subprocess installed post-installation script returned error exit status 2
  ErrorMessage: subprocess installed post-installation script returned error exit status 2
  InstallationDate: Installed on 2017-01-17 (0 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.1
   apt  1.2.12~ubuntu16.04.1
  SourcePackage: tar
  Title: package tar 1.28-2.1ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
  UpgradeStatus: No upgrade log present (probably fresh install)

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