sudo apt-get install kaccounts-providers
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  fonts-noto fonts-noto-cjk fonts-noto-unhinted linux-headers-4.2.0-16
  linux-headers-4.2.0-16-generic linux-image-4.2.0-16-generic
  linux-image-extra-4.2.0-16-generic linux-image-extra-4.2.0-18-generic
  linux-image-extra-4.2.0-19-generic linux-image-extra-4.2.0-21-generic
  linux-image-extra-4.2.0-22-generic linux-image-extra-4.2.0-23-generic
  linux-image-extra-4.2.0-25-generic ubuntu-release-upgrader-qt
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed
  kaccounts-providers
0 to upgrade, 1 to newly install, 0 to remove and 0 not to upgrade.
Need to get 4,108 B of archives.
After this operation, 22.5 kB of additional disk space will be used.
Get:1 http://gb.archive.ubuntu.com/ubuntu/ wily/universe kaccounts-providers all 4:15.08.2-0ubuntu1 [4,108 B]
Fetched 4,108 B in 0s (7,678 B/s)
Selecting previously unselected package kaccounts-providers.
(Reading database ... 726299 files and directories currently installed.)
Preparing to unpack .../kaccounts-providers_4%3a15.08.2-0ubuntu1_all.deb ...
Unpacking kaccounts-providers (4:15.08.2-0ubuntu1) ...
dpkg: error processing archive /var/cache/apt/archives/kaccounts-providers_4%3a15.08.2-0ubuntu1_all.deb (--unpack):
 trying to overwrite '/etc/signon-ui/webkit-options.d/www.facebook.com.conf', which is also in package account-plugin-facebook 0.12+15.10.20150723-0ubuntu1
Errors were encountered while processing:
 /var/cache/apt/archives/kaccounts-providers_4%3a15.08.2-0ubuntu1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)