[Bug 1780570] Re: package update-manager 1:18.04.11.3 failed to install/upgrade: installed update-manager package post-installation script subprocess returned error exit status 1

[Apport retracing service]

** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1780570

Title:
  package update-manager 1:18.04.11.3 failed to install/upgrade:
  installed update-manager package post-installation script subprocess
  returned error exit status 1

Status in update-manager package in Ubuntu:
  New

Bug description:
  Fresh 18.04 install. A snapd service stalled on first update. Rebooted
  after approx 15 minutes. Stopped and disabled snapd.  Reran updates
  but still saw message about stalled snapd service.  Rebooted. "sudo
  dpkg --reconfigure -a" failed, displaying

  "dpkg: error: parsing file '/var/lib/dpkg/updates/0172' near line 0:
   newline in field name '#padding'"

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: update-manager 1:18.04.11.3
  ProcVersionSignature: Ubuntu 4.15.0-26.28-generic 4.15.18
  Uname: Linux 4.15.0-26-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  Date: Sat Jul  7 15:03:42 2018
  ErrorMessage: installed update-manager package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2018-07-07 (0 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180702)
  PackageArchitecture: all
  Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3ubuntu1
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu2
   apt  1.6.2
  SourcePackage: update-manager
  Title: package update-manager 1:18.04.11.3 failed to install/upgrade: installed update-manager package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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