On my new Mac I've installed IntelliJ 2017.1.5 as well as node v6.11 and create-react-app 1.3.3. Everything works great except for IntelliJ and Webstorm do not autocomplete propTypes for imported node_modules. On my Ubuntu Box, I'm running IntelliJ 2016.? and I have no issues, but when I installed 2017, I had the same issue. I've tried invalidating the cache, but it happens on any fresh creation of a react app. I'm currently running MacOS: Sierra 10.12.5.