Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.


Dmytro Balbekov
Dmytro Balbekov
2,619 Points

Function "find" did n't work in Xcode 7

After a lessons about Playlists I tried to run this app on my device on a beta version of Xcode 7, but it crash ("find" is unavailable: call the "IndexOf()" method of the collection) Here is a part of code:

let playlistImageView = sender!.view as! UIImageView
if let index = find(playlistsArray, playlistImageView){

    let playlistDetailController = segue.destinationViewController as! PlaylistDetailViewController

    playlistDetailController.playlist = Playlist(index: index)}
Jacob Lapworth
Jacob Lapworth
4,881 Points

The find function is no longer supported in Swift 2.0, instead you can use indexOf() method. Here is the new line of code you want to use:

if let index = playlistsArray.indexOf(playlistImageView) {