app.js

import React from 'react';
import Router from 'react-router';
import { DefaultRoute, Link, Route, RouteHandler } from 'react-router';

import LoginHandler from './components/Login.js';

let App = React.createClass({
  render() {
    return (
      <div className="nav">
        <Link to="app">Home</Link>
        <Link to="login">Login</Link>

        {/* this is the importTant part */}
        <RouteHandler/>
      </div>
    );
  }
});

Error: Module build failed: SyntaxError: E:/Project/js/app.js: Unexpected token (10:6)