[Bug 1756120] Re: package update-notifier-common 3.168.8 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Launchpad Bug Tracker]

[Expired for update-notifier (Ubuntu) because there has been no activity
for 60 days.]

** Changed in: update-notifier (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1756120

Title:
  package update-notifier-common 3.168.8 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1

Status in update-notifier package in Ubuntu:
  Expired

Bug description:
  Sorry if the formatting isn't up to bar, this is one of my first
  tickets here. Please advise as to how to help you help me resolve this
  issue.

  This is the result of `sudo apt upgrade`:

  Setting up update-notifier-common (3.168.8) ...
  Traceback (most recent call last):
    File "/usr/lib/update-notifier/package-data-downloader", line 24, in <module>
      import debian.deb822
    File "/usr/lib/python3/dist-packages/debian/deb822.py", line 38, in <module>
      import chardet
  ImportError: No module named 'chardet'
  dpkg: error processing package update-notifier-common (--configure):
   subprocess installed post-installation script returned error exit status 1
  dpkg: dependency problems prevent configuration of flashplugin-installer:
   flashplugin-installer depends on update-notifier-common (>= 0.119ubuntu2); however:
    Package update-notifier-common is not configured yet.

  dpkg: error processing package flashplugin-installer (--configure):
   dependency problems - leaving unconfigured
  No apport report written because the error message indicates its a followup error from a previous failure.
                            dpkg: dependency problems prevent configuration of update-notifier:
   update-notifier depends on update-notifier-common (= 3.168.8); however:
    Package update-notifier-common is not configured yet.

  dpkg: error processing package update-notifier (--configure):
   dependency problems - leaving unconfigured
  No apport report written because the error message indicates its a followup error from a previous failure.
                            Setting up libdpkg-perl (1.18.4ubuntu1.4) ...
  Setting up dpkg-dev (1.18.4ubuntu1.4) ...
  Errors were encountered while processing:
   update-notifier-common
   flashplugin-installer
   update-notifier
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: update-notifier-common 3.168.8
  ProcVersionSignature: Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13
  Uname: Linux 4.13.0-36-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  Date: Thu Mar 15 08:15:40 2018
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2017-11-27 (107 days ago)
  InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
  PackageArchitecture: all
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.3
   apt  1.2.25
  SourcePackage: update-notifier
  Title: package update-notifier-common 3.168.8 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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