Comment 0 for bug 1616689

pk-update-icon:
  Installed: 2.0.0-1
  Candidate: 2.0.0-1
  Version table:
 *** 2.0.0-1 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
        100 /var/lib/dpkg/status

chris@localhost:~$ lsb_release -rd
Description: Ubuntu 16.04.1 LTS
Release: 16.04

Error popped up after logging out and back in to test Xfce window manager

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: apt-config-auto-update (not installed)
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Wed Aug 24 16:22:38 2016
DuplicateSignature:
 package:apt-config-auto-update:(not installed)
 Unpacking apt-config-auto-update (2.0.0-1) ...
 dpkg: error processing archive /var/cache/apt/archives/apt-config-auto-update_2.0.0-1_all.deb (--unpack):
  trying to overwrite '/etc/apt/apt.conf.d/10periodic', which is also in package update-notifier-common 3.168.1
ErrorMessage: trying to overwrite '/etc/apt/apt.conf.d/10periodic', which is also in package update-notifier-common 3.168.1
InstallationDate: Installed on 2014-10-24 (670 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: pk-update-icon
Title: package apt-config-auto-update (not installed) failed to install/upgrade: trying to overwrite '/etc/apt/apt.conf.d/10periodic', which is also in package update-notifier-common 3.168.1
UpgradeStatus: No upgrade log present (probably fresh install)