I am getting this error:

Uncaught Error: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.

This is my code:
var React = require(‘react’)
var ReactDOM = require(‘react-dom’)
var Router = require(‘react-router’)
var Route = Router.Route
var Link = Router.Link

var App = React.createClass({
render() {
return (

)
}
})

var About = require(‘./components/Home’)
ReactDOM.render((





), document.body)

My Home.jsx file:
var React = require(‘react’);
var RaisedButton = require(‘material-ui/lib/raised-button’);

var Home = React.createClass({
render:function() {
return (

);
},
});

module.exports = Home;