[Bug 1563945] Re: package avahi-dnsconfd 0.6.32~rc+dfsg-1ubuntu2 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1

[Biquet3000]

Simple user who don't understand all that, I'm French and just using
Ubuntu but can't resolve problem by myself. Please find an easier way to
fix problems for me. Thanks...

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https://bugs.launchpad.net/bugs/1563945

Title:
  package avahi-dnsconfd 0.6.32~rc+dfsg-1ubuntu2 failed to
  install/upgrade: subprocess installed pre-removal script returned
  error exit status 1

Status in avahi package in Ubuntu:
  Fix Released

Bug description:
  interesting issues while updating packages this morning...

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: avahi-dnsconfd 0.6.32~rc+dfsg-1ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-16.32-generic 4.4.6
  Uname: Linux 4.4.0-16-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  Date: Wed Mar 30 09:33:28 2016
  DpkgTerminalLog:
   Removing avahi-discover (0.6.32~rc+dfsg-1ubuntu2) ...
   Removing avahi-dnsconfd (0.6.32~rc+dfsg-1ubuntu2) ...
   Job for avahi-daemon.socket canceled.
   dpkg: error processing package avahi-dnsconfd (--remove):
    subprocess installed pre-removal script returned error exit status 1
  DuplicateSignature:
   Removing avahi-dnsconfd (0.6.32~rc+dfsg-1ubuntu2) ...
   Job for avahi-daemon.socket canceled.
   dpkg: error processing package avahi-dnsconfd (--remove):
    subprocess installed pre-removal script returned error exit status 1
  ErrorMessage: subprocess installed pre-removal script returned error exit status 1
  InstallationDate: Installed on 2016-01-06 (83 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1
   apt  1.2.9
  SourcePackage: avahi
  Title: package avahi-dnsconfd 0.6.32~rc+dfsg-1ubuntu2 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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