text: import React, { PropTypes } from 'react';
  
  const propTypes = {
    location: PropTypes.object.isRequired,
  };
  
  function PageNotFound({ location }) {
    return (
      <p>
        Page not found - the path,
        did not match any React Router routes.
      </p>
    );
  }
  
  PageNotFound.propTypes = propTypes;
  
  export default PageNotFound;
  