錯誤描述：Objects are not valid as a React child. If you meant to render a collection of children, use an array instead or wrap the object using createFragment(object) from the React add-ons. Check the render method of Root.我知道react child不能是一個對象，需轉成數組或者字符串 ，但是我沒在我的Root類里發現這樣的錯誤，而且這個bug只在IE下出現，這個錯誤信息是指Root類本身有問題還是說Root類里所有可能渲染的組件有問題import React, { Component, PropTypes } from 'react'import { Provider } from 'react-redux'import { Router, browserHistory } from 'react-router'import { syncHistoryWithStore } from 'react-router-redux'import routes from './routes'export default class Root extends Component {  render() {    const { store } = this.props    const history = syncHistoryWithStore(browserHistory, store)        // render Root, and Router, which will load specific component when an URL is loaded    return (      <Provider store={store}>        <div>          <Router history={history} routes={routes} />        </div>      </Provider>    )  }}```