Not sure why but I can see these messages in the beta bundles:

```
ReactDOM.render(): Invalid component element. Instead of passing a string like 'div', pass React.createElement('div') or <div />.
Missing injection for fiber findDOMNode
Missing injection for stack findDOMNode
Element appears to be neither ReactComponent nor DOMNode. Keys: %s
Target container is not a DOM element.
```

I'd like to understand why.
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */
'use strict';
const babylon = require('babylon');
const fs = require('fs');
const path = require('path');
const traverse = require('babel-traverse').default;
const evalToString = require('../shared/evalToString');
const invertObject = require('./invertObject');
const babylonOptions = {
  sourceType: 'module',
  
  
  
  
  plugins: [
    'classProperties',
    'flow',
    'jsx',
    'trailingFunctionCommas',