package apt-config-auto-update (not installed) failed to install/upgrade: tentative de remplacement de « /etc/apt/apt.conf.d/10periodic », qui appartient aussi au paquet update-notifier-common 3.168.4

unable to install apt-config-auto-update. ubuntu report a partial installation

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: apt-config-auto-update (not installed)
ProcVersionSignature: Ubuntu 4.4.0-72.93-generic 4.4.49
Uname: Linux 4.4.0-72-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
AptOrdering:
 apt-config-auto-update: Install
 aptitude-doc-fr: Install
 apt-config-auto-update: Configure
 aptitude-doc-fr: Configure
 NULL: ConfigurePending
Architecture: amd64
Date: Thu Apr 20 12:35:34 2017
ErrorMessage: tentative de remplacement de « /etc/apt/apt.conf.d/10periodic », qui appartient aussi au paquet update-notifier-common 3.168.4
InstallationDate: Installed on 2017-02-15 (63 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
SourcePackage: pk-update-icon
Title: package apt-config-auto-update (not installed) failed to install/upgrade: tentative de remplacement de « /etc/apt/apt.conf.d/10periodic », qui appartient aussi au paquet update-notifier-common 3.168.4
UpgradeStatus: No upgrade log present (probably fresh install)