package kaccounts-providers (not installed) failed to install/upgrade: tentative de remplacement de « /etc/signon-ui/webkit-options.d/www.facebook.com.conf », qui appartient aussi au paquet account-plugin-facebook 0.12+16.04.20160126-0ubuntu1

I was installing Kubuntu-desktop in my Ubuntu 16.04 LTS. During the installation, via termial, this message show up.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: kaccounts-providers (not installed)
ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
Uname: Linux 4.4.0-24-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Fri Jun 24 18:05:38 2016
ErrorMessage: tentative de remplacement de « /etc/signon-ui/webkit-options.d/www.facebook.com.conf », qui appartient aussi au paquet account-plugin-facebook 0.12+16.04.20160126-0ubuntu1
InstallationDate: Installed on 2016-04-24 (61 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: kaccounts-providers
Title: package kaccounts-providers (not installed) failed to install/upgrade: tentative de remplacement de « /etc/signon-ui/webkit-options.d/www.facebook.com.conf », qui appartient aussi au paquet account-plugin-facebook 0.12+16.04.20160126-0ubuntu1
UpgradeStatus: No upgrade log present (probably fresh install)