RTS Plugin

Hello! I hope everyone is OK!
I actually have a question: Im pretty new to the engine. I have used it for a while, but there are things that i can’t understand. One of those is this:
I have downloaded a RTS plugin (GitHub - npruehs/ue4-rts: Real-time strategy plugin and showcase for Unreal Engine 4.) But it says i must rebuild the source manually. How can I do this? What do you think it’s the best version of the engine to use this plugin?

-Thanks!

Hello. I have the same problem. Did you find a solution?