I'd like to try out some of the new Concurrent Mode features in React 18. The official documentation, as well as several articles, claim that you just need to install react@experimental react-dom@experimental. I have done so but I am met with the following error:

Property 'unstable_createRoot' does not exist on type 'typeof import("C:/my-app/node_modules/@types/react-dom/index")'.  TS2339

  > 10 | ReactDOM.unstable_createRoot(document.getElementById("root")).render(<App />);
       |          ^

This is my trying to add this import to an existing project that is already working, not a new project from scratch

EDIT2: Here is my code:

import React from "react";
import ReactDOM from "react-dom";
import { App } from "./App";

ReactDOM.unstable_createRoot(document.getElementById("root")).render(
  <React.StrictMode>
      <App />
  </React.StrictMode>
);