Physics and AI error

Greetings all,

I am a GDD (Game design and development) student and have been tasked with creating a basic game. I am working on my final and wanted to integrate physics and AI. I was hoping someone could point me in the right direction. I asked my professor but he has unfamiliar with how to achieve what I am wanting. This is the video/question I sent him. I am a newbie with only a few months of UE4 experience. I apologize if this was posted in the wrong area.