小编Ali*_*Dev的帖子

我正在开发一个 React 项目，一切正常。然后我开始使用react-router-dom，但路由器不工作。我想进入主屏幕，但它给了我这些错误：

Invalid hook call. Hooks can only be called inside of the body of a function component. 

Uncaught TypeError: Cannot read properties of null (reading "useRef")

应用程序.js：

import Container from 'react-bootstrap/Container'
import Footer from './components/footer';
import Header from './components/header';
import './index.css';
import {BrowserRouter as Router, Route} from 'react-router-dom'
import HomeScreen from './screens/homeScreen';

function App() {
  return (
    <Router>
      <Header/>
      <main className='py-3'>
        <Container >
        <Route path="/" exact component={HomeScreen} />
        </Container>
      </main>
      <Footer/>
    </Router>
  );
}

export default …