我继续得到错误：

“路由器”可能只有一个子元素

当使用react-router时。

我似乎无法弄清楚为什么它不起作用，因为它与示例中显示的代码完全一样：快速入门

这是我的代码：

import React from 'react';
import Editorstore from './Editorstore';
import App from './components/editor/App';
import BaseLayer from './components/baselayer';
import {BrowserRouter as Router, Route} from 'react-router-dom';
import {render} from 'react-dom';

const root = document.createElement('div');
root.id = 'app';
document.body.appendChild(root);

const store = new Editorstore();
const stylelist = ['https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css', 'https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.2/semantic.min.css', 'https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.2/animate.min.css', 'https://api.tiles.mapbox.com/mapbox-gl-js/v0.33.1/mapbox-gl.css'];

stylelist.map((link) => {
    const a = document.createElement('link');
    a.rel = 'stylesheet';
    a.href = link;
    document.body.appendChild(a);
    return null;
});

render((
  <Router>
    <Route exact  path="/" component={BaseLayer} />
    <Route path="/editor" component={App} store={store} />
  </Router>
), document.querySelector('#app'));

感谢您的帮助