Hello everyone, not quite sure if this is the right forum for my topic, but I’ll try my luck anyway 
So I am trying to start a CAVE-project with 3 projection walls.
Here for I got three computers and three projectors which are connected to those.
On my computers, of course the unreal engine is installed.
Goal:
My plan is to project one scene on those three walls.
With the images projected to the walls being synchronized.
First approach:
So my first idea on how to realize this was using the n-display function (https://docs.unrealengine.com/en-US/Engine/Rendering/nDisplay/QuickStart/index.html)
In the documentation I also found the path to a example of a configuration file.
I tried to adjust it to my concerns (IP-adress, number of projectors, etc.).
So in a first step I’d like to only synchronize 2 of those screens with each other.
Following the insturctions in “nDisplay Quick Start” Documentation, I used the n-Display Launcher on the host-computer and started the n-Display listener on the clients.
So when I’m trying to run everything, I unfortunately get the attached error message.
(the red written letters say: the system can’t find the file)
Unfortunately I’ve never worked with anything similar like this before.
So I’d really, really appreciate any hints from you!
Best regards!