使用reaaft route 报错

Question

页面引入react routeimport React, { Component } from 'react';import { Router, Route, IndexRoute, browserHistory } from 'react-router';// 登录界面import Login from '../Login/index';class App extends Component {    render() {        return (            <Router history={browserHistory}>                <Route path="/login" component={Login} />            </Router>        );    }}export default App;但是一直提示报错，'react-router' does not contain an export named 'browserHistory'.我之前的项目使用history={browserHistory}请问下这个怎么修改，少了什么依赖吗