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 Weather App with Swift (Retired) Data Modeling With Structures Cleaning Up Our Date

I am not sure why I am getting no Output on my console

override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        let baseURL = NSURL(string: "https://api.forecast.io/forecast/\(apiKey)/")
        let forecastURL = NSURL(string: "37.8267,-122.423", relativeToURL: baseURL!)

        let sharedSession = NSURLSession.sharedSession()
        let downloadTask: NSURLSessionDownloadTask = sharedSession.downloadTaskWithURL(forecastURL!, completionHandler: { (#location: NSURL!, #response: NSURLResponse!, #error: NSError!) -> Void in

            if (error == nil){
                let dataObject = NSData(contentsOfURL: location)


                let weatherDictionary: NSDictionary = NSJSONSerialization.JSONObjectWithData(dataObject!, options: nil, error: nil) as NSDictionary

                let currentWeather = Current(weatherDictionary: weatherDictionary)
                    println(currentWeather.temperature)

I have never used Xcode before and was just following the steps to get the temp to print out on the console. However I am getting no output on the console at all and am wondering if there is a setting issue or what?

1 Answer

You've used invalid key-value pares, so it returned nil.

            let currentWeather: NSDictionary = weatherDictionary["currently"] as NSDictionary

            println(currentWeather["temperature"])