javascript - 一个 只能有一个子元素

Question

尝试使用带有react-router-dom的链接时，我不断收到此错误

A <Router> may have only one child element

这是我的代码:

import React, { Component } from 'react';
import logo from './logo.svg';
import './App.css';
import Layout from './Layout';

class App extends Component {
  render() {
    return (
      <div className="App">

        <header className="App-header">
          <img src={logo} className="App-logo" alt="logo" />
          <h1 className="App-title">Welcome to React</h1>
        </header>
        <p className="App-intro">
          To get started, edit <code>src/App.js</code> and save to reload.
        </p>
        <Layout />
        <div>

        </div>
      </div>
    );
  }
}

export default App;

Answer 1

正如错误听起来一样，您需要将所有内容包装在 <Router /> 内在 <div> .

之前:

render() {
    return (
        <Router>
            <Link />
            <Link />
            <Link />
        </Router>
    )
}

之后:

render() {
    return (
        <Router>
            <div>
                <Link />
                <Link />
                <Link />
            </div>
        </Router>
    )
}

React components can only have one child.