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

在react-router-dom v6中，开关被路由替换。下面是配置react-router-dom v6的简单示例。

import * as React from 'react';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';

import Layout from './components/Layout';
import ProtectedRoute from './components/ProtectedRoute';
import LoginPage from './pages/LoginPage';
import WizardPage from './pages/WizardPage';
import RequestsPage from './pages/RequestsPage';

import './App.scss'

export class App extends React.Component {
    public render() {
        const sharedRouteProps = { exact: true, authenticationPath: '/login' };
        const wizardRouteProps = { ...sharedRouteProps, path: "/", component: WizardPage };
        const requestsRouteProps = { ...sharedRouteProps, path: "/requests", component: RequestsPage };

        return (
            <Layout>
              <Router>
                <Switch>
                    <Route exact path='/login' component={LoginPage} />
                    <ProtectedRoute {...wizardRouteProps} />
                    <ProtectedRoute {...requestsRouteProps} />
                </Switch>
              </Router>
            </Layout>
        );
    }
}

2022-07-11 03:36:53

我也有同样的问题。在项目终端上，输入以下命令。您不需要对代码进行任何更改。

卸载NPM react-router-dom NPM安装react-router-dom@5.2.0

2021-12-17 18:23:38

import React from "react";
import { Link, BrowserRouter as Router, Route, Routes } from "react-router-dom";
import "./App.css";
import App from "./App";
const RouterPage = () => {
    return (
        <Router>
            <div>
                <nav>
                    <Link to="/">Home</Link>
                    <Link to="/posts">Posts</Link>
                    <Link to="/">About</Link>
                    <Link to="/contact">Contact</Link>
                </nav>
                <Routes>
                    <Route exact path="/" element={<App />}></Route>
                    <Route path="/post" element={<App />} />
                    <Route path="/about" element={<App />} />
                    <Route path="/contact" element={<App />} />
                </Routes>
            </div>
        </Router>
    );
};

你应该把Switch换成Routes

2022-11-15 03:13:53

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

2022-12-24 05:52:15

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

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