HELP where's my login screen!!!!
 

The name org.gnome.displaymanager was not provided by any .service files

is what my error message pops up when i log back in from my lock screen...

i cannot get a gui login screen after login from boot up or from the lock screen...

I have JUST installed XFCE and Cinnamon...at the same time, rebooted, and this is what I get..can't get a login screen..

btw i'm running kali linux..

First of all; which are you using: Stable, Testing or Unstable?

Addendum
 

I'm using an up to date Stable version of Kali

Since Kali is a Debian derivative and not Debian, a better place to post this question would be in the General section, or perhaps here.