can use react react-dom with cdn

my application build with react react-dom redux react-redux reatc-router react-router-dom,I want to use react、react-dom with CDN，but npm start failed.the official document just say how to import Minified js file in html,so it can not work

Start by reproducing the reported npm start failure in an application using React, React DOM, Redux, React Redux, and React Router, then review the official documentation's CDN guidance. The issue does not provide an error message or identify a file. Done means the documentation clearly explains whether and how this setup works with CDN scripts.