It does not compile in XCode 9

[wamra]

Thank you for the tutorial, it seems though that the code is outdated.

[alexbumpers]

@wamra The tutorial is great, and I've just finished integrating it into a current project of mine with updated code. I'm going to submit a PR soon and update things.

In the meantime, what problem(s) are you experiencing? A lot of the problems are just syntactical. I'm happy to help if you're still trying to work with this.