package account-plugin-facebook (not installed) failed to install/upgrade: trying to overwrite '/etc/signon-ui/webkit-options.d/www.facebook.com.conf', which is also in package kaccounts-providers 4:15.12.3-0ubuntu1

I am using kubuntu 16.04.1 . I tried installing the alternative desktops of gnome and unity for fun. However unity totally failed to install and forced an ugly manual uninstall process using konsole where i had to uninstall google-drive first before i could uninstall unity. However, gnome installed with system errors and seems to work with just a few errors. I installed gnome 1:3.14+3ubuntu1. i just hoped it would work without errors.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: account-plugin-facebook (not installed)
ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19
Uname: Linux 4.4.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Sun Oct 9 16:34:49 2016
DuplicateSignature:
 package:account-plugin-facebook:(not installed)
 Unpacking account-plugin-facebook (0.12+16.04.20160126-0ubuntu1) ...
 dpkg: error processing archive /var/cache/apt/archives/account-plugin-facebook_0.12+16.04.20160126-0ubuntu1_all.deb (--unpack):
  trying to overwrite '/etc/signon-ui/webkit-options.d/www.facebook.com.conf', which is also in package kaccounts-providers 4:15.12.3-0ubuntu1
ErrorMessage: trying to overwrite '/etc/signon-ui/webkit-options.d/www.facebook.com.conf', which is also in package kaccounts-providers 4:15.12.3-0ubuntu1
InstallationDate: Installed on 2016-10-02 (7 days ago)
InstallationMedia: Kubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: account-plugins
Title: package account-plugin-facebook (not installed) failed to install/upgrade: trying to overwrite '/etc/signon-ui/webkit-options.d/www.facebook.com.conf', which is also in package kaccounts-providers 4:15.12.3-0ubuntu1
UpgradeStatus: No upgrade log present (probably fresh install)