Wait, why did you refactor all things? I’m afraid you have been misinformed. :-(<p>Please read the official release notes when upgrading.<p>Nowhere does 0.14 say you need to change components to use classes. They are <i>allowed</i> now (since 0.13) but React.createClass() is still there and is not going away any time soon. I’m afraid you listened to bad advice.