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

[tadj polat]

i wanted to install the kde DE, so i launched the terminal and typed the following commands :
sudo apt-get install kubuntu-desktop
and after a while the download has finished with this error, and each time i try to get to the system with the kde environment i have a black screen
need help please

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: kaccounts-providers (not installed)
ProcVersionSignature: Ubuntu 4.8.0-36.36~16.04.1-generic 4.8.11
Uname: Linux 4.8.0-36-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Sun Jul 16 03:21:29 2017
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 2017-07-15 (0 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
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)

[Steve Beattie (sbeattie)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1617564, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.