When I try to run the simulator, my simulator turns black. What is happening and how do I fix it?

ok, so this is what is says:

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

What should I delete? I tried deleting:

-> Bool { // Override point for customization after application launch. return true }

I got a message saying:

"Expected '{' in body of function declaration."

Do you know what to do?

That block of code is fine. Don't delete anything. I'd also suggest going through the Swift courses to see what that "-> Bool" means and why that method is returning 'true'.

Are you working with a Storyboard? If so, go to your General settings tab and scroll down to where it says "Main Interface". Click on the down arrow and choose the view controller that serves as your Main view controller in your project. See if that works.

Um, I think that I am running the app with View Contoller. Should I still check or is there a different option?

When I delete some thing that says

-> Bool { //overide point for customization after application launch. return true } | Next, I get an eror message that points to the "a" in the "func application(application..." the a is the one with the line over it. The error says, "Expected '{' in body of function declaration."

Do you know what to do?