How to fix the white screen after build with create-react-app?

Question

I used react-router-dom and I build my react-app. When I deploy it on the server, I get a blank page and the console is empty.

My App.js is :

Answer 1

I also had this problem, blank white screen, no errors. None of these answers solved my problem. I'm gonna leave the solution to my problem here, so that someone else like me wont spent 2 hours on a small mistake.

Just make sure you upload all files in /build folder to the server.