kaccounts-providers software package provides KDE providers for accounts sign-on, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install kaccounts-providers
kaccounts-providers is installed in your system.
Make ensure the kaccounts-providers package were installed using the commands given below,
$ sudo dpkg-query -l | grep kaccounts-providers *
You will get with kaccounts-providers package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | KDE |
| Package | kaccounts-providers |
| Version | 4:15.12.3-0ubuntu1 |
| Description | KDE providers for accounts sign-on |
| Sub Section | KDE |