I had a computer with Ubuntu 16.04 running the Unity desktop. I wanted to switch to Kubuntu, so I installed it using this command:
$ sudo apt install kubuntu-desktop
Everything installed fine, except this error at the end:
kde-telepathy-minimal : Depends: kde-config-telepathy-accounts (>= 0.9.0) but it is not installed
After this, there is an error about
kaccounts-provider whenever I login into Unity. If I try to login into the KDE desktop, I get a blank display!
This error seems to be hitting lots of people as seen here. This seems to be caused by a conflict between packages required by Unity and KDE. Apparently, Unity (Ubuntu) and KDE (Kubuntu) cannot be installed on the same computer!
Following some clues given by other users, I forcefully removed Telepathy since I did not need it anyway:
$ sudo dpkg --remove kde-telepathy $ sudo apt update $ sudo apt dist-upgrade
After this the Unity error on login and the black display in KDE went away. I was able to switch to using KDE as my primary desktop.
So, if you intend to use Kubuntu, you are better off installing a Kubuntu ISO directly instead of installing it from inside Ubuntu.