你只需要做两件事:

将Switch替换为路由。 使用这个Route标签

<Route path="/" element={<Component />} />

而不是这个:

<Route>
  path="/"
  <Component />
</Route>

这是一个使用react-router-dom V6的例子

import React from 'react'
import { BrowserRouter as Router, Route, Routes } from 'react-router-dom'

import '../styles/global.css'

import Layout from '../containers/Layout'
import Home from '../pages/Home'
import Login from '../containers/Login'
import RecoveryPassword from '../containers/RecoveryPassword'
import NotFound from '../pages/NotFound'

const App = () => {
  return (
    <Router>
      <Layout>
        <Routes>
          <Route exact path="/" element={<Home/>}/>
          <Route exact path="/login" element={<Login/>}/>
          <Route exact path="/recovery-password" element={<RecoveryPassword/>}/>
          <Route path="*" element={<NotFound/>}/>
        </Routes>
      </Layout>
    </Router>
  );
}

export default App;

我和杂志海报上的人面临着同样的问题。我尝试了以下所有的方法:

卸载并安装react-router-dom 分别从react-router-dom导入Switch

但对我来说什么都没用。

请遵循以下指示。我相信你不会再得到错误。

正确的代码:

import React from "react";
import "./App.css";
import NavBar from "./components/navbar.js";
import Footer from "./components/footer.js";
import Home from "./components/pages/homepage/home.js";
import { BrowserRouter as Router, Routes, Route, Link } from "react-router-dom";

function App() {
  return (
    <Router>
      <div className="app-container">
        <NavBar />
        <Routes>
          <Route path="/home" element={<Home/>} />
        </Routes>
        <Footer />
      </div>
    </Router>
  );
}

export default App;

注意:Switch已经被替换为Routes，我们需要使用element而不是component。

改变

import { BrowserRouter as Router, Switch, Route, Link } from "react-router-dom";

<Switch>
    <Route path="/home" component={Home} />
</Switch>

to

import { BrowserRouter as Router, Routes, Route, Link } from "react-router-dom";

<Routes>
    <Route path="/home" element={ <Home />} />
</Routes>

export 'Switch'(作为'Switch'导入)在'react-router-dom'中找不到

第一种方法[用路由替换交换机]

import { Routes , Route , Link } from 'react-router-dom';
<Routes>
 <Route exact path='/'>
  <HomePage />
 </Route>
</Routes>

第二种方法[将react-router-dom版本降级至版本5或以下]

npm i react-router-dom@5.0.0

在react-router-dom v6中，Switch被替换为Routes。 使用以下格式:

import { BrowserRouter as Router, Routes, Route} from 'react-router-dom';

<Router>
    <Routes>
        <Route exact path="/" component={component} />
        <Route exact path="/path2" component={component2} />
        <Route exact path="/path3" component={component3} />
    </Routes>
</Router>