用webpack4打包react-router出错。

Question

import React from 'react';import {render} from 'react-dom';import {Router, Route, browserHistory} from 'react-router';import Login from './public/src/js/Login.js';require('path');if(module.hot){  module.hot.accept();}render(<Router history={browserHistory}>    <Route path="/" component={Login}></Route></Router>,document.getElementById('app'))