I'm following the Hello World tutorial Video on <http://audiokit.io/downloads/>

As soon as I add the line `AudioKit.start()` in the `ViewController.swift` I get the error:

> 
> Call can throw, but it is not marked with 'try' and the error is not handled"
> 
> 
> 

I downloaded fresh AudioKit 4.1 and dragged in frameworks.

[![enter image description here](https://i.stack.imgur.com/3Sg1M.png)](https://i.stack.imgur.com/3Sg1M.png)