var React = require('react');
var Router = require('react-router');
var Route = Router.Route;

var App = React.createClass({

  render: function() {
    return (


<div>App</div>


    );
  }
});

React.render((
  <Router>
    <Route path="/" handler={App}></Route>
  </Router>
), document.getElementById('app'));

就简单使用router就报错了
type.toUpperCase is not a function
是这段函数里的报错，是router食用姿势不对？

 function autoGenerateWrapperClass(type) {
      return ReactClass.createClass({
        tagName: type.toUpperCase(),
        render: function() {
          return new ReactElement(
            type,
            null,
            null,
            null,
            null,
            this.props
          );
        }
      });
    }