Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Build a Simple iPhone App with Swift 2.0 View Controllers and Views Using IBAction to Execute Methods

Zach Plotkin
Zach Plotkin
128 Points

When I press the button it says something that i don't understand:

Please note that the part in all caps is what the problem is, and it is on the same line as "class...UIApplicationDelegate" I would really appreciate your help!

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {                   THREAD 1: SIGABRT

    var window: UIWindow?


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.

What does the error say in the console?