尝试导入错误:“Switch”没有从“react-router-dom”导出

我不知道为什么我得到这个错误，我在任何地方都找不到答案。我已经卸载了react-router-dom包并重新安装了它，但它仍然告诉我交换模块没有从react-router-dom导出。这是我的代码。

我得到的错误是:

试图导入错误:“Switch”没有从“react-router-dom”中导出。

Code

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, Switch, Route, Link } from 'react-router-dom';

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

export default App;

当前回答

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>

2022-07-13 08:02:24

其他回答

我解决了我的错误，通过改变我渲染我的路线使用元素的方式。

To:

import React from "react";
import { BrowserRouter as Router, Route, Routes } from "react-router-dom";
import { Home } from "./app";
import { Login, Register } from "./auth";
const R: React.FC = () => {
  return (
    <Router>
      <Routes>
        <Route path="/login" caseSensitive={false} element={<Login />} />
        <Route path="/register" caseSensitive={false} element={<Register />} />
        <Route path="/" caseSensitive={false} element={<Home />} />
      </Routes>
    </Router>
  );
};
export default R;

基本上在v6之前。*:

import React from "react";
import { BrowserRouter as Router, Route, Switch} from "react-router-dom";
import { Home } from "./app";
import { Login, Register } from "./auth";
const R: React.FC = () => {
  return (
    <Router>
      <Switch>
        <Route path="/login">
           <Login />
        </Route>
       <Route path="/register">
           <Register/>
        </Route>

       <Route path="/">
           <Home/>
        </Route>
      </Switch>
    </Router>
  );
};
export default R;

在v6 . *

import React from "react";
import { BrowserRouter as Router, Route, Routes } from "react-router-dom";
import { Home } from "./app";
import { Login, Register } from "./auth";
const R: React.FC = () => {
  return (
    <Router>
      <Routes>
        <Route path="/login" caseSensitive={false} element={<Login />} />
        <Route path="/register" caseSensitive={false} element={<Register />} />
        <Route path="/" caseSensitive={false} element={<Home />} />
      </Routes>
    </Router>
  );
};
export default R;

2021-11-14 08:47:43

React-router-dom已更新到版本6。现在他们已经将<Switch/>组件重命名为<Routes/>。也有很多变化。

您应该花些时间阅读文档。下面是react-router-v6-doc的链接。

2021-12-20 09:22:21

Switch已被Routes替换。

更新路由(react-router-dom语法)#1386 (howtographql GitHub)

2021-11-17 16:46:08

之前:

import { Route, Switch} from 'react-router'

<Router>
    <Switch>
        <Route />
        <Route />
    </Switch>
</Router>

Now:

import { Route, Routes} from 'react-router'

<Router>
    <Routes>
        <Route />
        <Route />
    </Routes>
</Router>

只需使用路由而不是交换机。

2021-11-25 13:09:17

我也面临着这个问题，并最终通过安排代码解决了它。我是React的新手。

以下是我的App.js代码(类基组件):

import logo from './logo.svg';
import './App.css';

import React, { Component } from 'react'
import PropTypes from 'prop-types'
import Navbar from './components/Navbar';
import News from './components/News';
import { BrowserRouter as Router, Route, Routes,Link } from 'react-router-dom'

export class App extends Component {
  static propTypes = {

  }

  render() {
    return (
      <>
        <Navbar/>
        <Router>
          <Routes>
            <Route path="/general"><News pageSize={3} country={'us'} category={'general'}/></Route>
          </Routes>
        </Router>
      </>
    )
  }
}

export default App

2021-11-24 18:36:19

尝试导入错误:“Switch”没有从“react-router-dom”导出

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