The downloadable files have lots of errors!

Hi Rolando,

I've taken a look at the files and have fixed the errors causing the problems, as an overview Swift 1.2 changed everything to be an optional which means we now need to unwrap values using the question mark which safely unwraps an object along with the bang ! which will trigger an error if the object is nil as it implies a forceful downcast.

In this project you will notice in Playlist.swift I've used the bang as! instead of a question mark for the below line, the reason for this is the += operator doesn't allow for nil values which means if our artists array is empty our code will fail, in our case we don't ever expect this to happen but for your own projects it's better to check if anything exists in the object before attempting to grab it's data.

artists += playlistDictionary["artists"] as! [String]

Download updated files for Swift 1.2

For more information about the changes to Swift see the below link.

http://www.raywenderlich.com/95181/whats-new-in-swift-1-2

Hope that helps.