Webpack does not throw error despite missing component. Why?

I have been experimenting with React after upgrading to React 18 and did not understand why no error is thrown when a component is missing …

import                              './F1.css';

import React              from      'react';
import { useSelector }    from      'react-redux';

export default () => {
  return (
    <div id="app_hold">
      <F1Inner />
    </div>
  );
};

F1Inner does not exist, however, there is no error thrown by webpack