_react2.default.createClass is not a function 报错

[hjx5309]

为什么将您注释的代码取消注释后，就报_react2.default.createClass is not a function错
const {Router,Route,IndexRoute,hashHistory } =ReactRouter;

const App = () =>
<div style = { innerStyles.container } class="clearfix">

window.onload = function() {
window.s = ReactDOM.render(











,
document.getElementById('example')
)
}