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iOS Build a Weather App with Swift Managing Complexity Callback Methods With Closures

Evan Schneyer
Evan Schneyer
3,165 Points

Valid code not being accepted

I believe my code is correct; I've followed the instructions exactly and it compiles in XCode, but is returning an error and not letting me advance. Here's the code:

func fetchTreehouseBlogPosts( completion: (NSData!, NSURLResponse!, NSError!) -> () ) -> Void {


I've also tried it with a typealias and with naming the parameters and netierh works either.

import Foundation

// Add your code below
func fetchTreehouseBlogPosts( completionHandler: (data: NSData!, response: NSURLResponse!, error: NSError!) -> () ) -> Void {