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iOS

Ludwing Najera
Ludwing Najera
4,596 Points

My forecastURL is nil?

In my ViewDidLoad, my weatherData object is giving me a fatal error when i run the app. Is says my forecastURL object is nil, or like what the console said, "fatal error: unexpectedly found nil while unwrapping an Optional value." Is it because I'm force unwrapping the forecastURL? Here's my code.

private let forecastAPIKey = "51c9c3a1c89948f84fb48ca5db50fdda"

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/\(forecastAPIKey)/")
    let forecastURL = NSURL(string: "39.424031, -77.407157", relativeToURL: baseURL)

    // Data object to fetch weather data
    //this is where I get my fatal error 
    let weatherData = NSData(contentsOfURL: forecastURL!, options: nil, error: nil)
    println(weatherData)

1 Answer

Steven Deutsch
Steven Deutsch
21,046 Points

Hey Ludwing Najera,

You have to remove the space between the longitude and latitude values. Theres no space in the URL.

let baseURL = NSURL(string: "https://api.forecast.io/forecast/\(forecastAPIKey)/")
// Remove the space between the longitude and latitude values
let forecastURL = NSURL(string: "39.424031,-77.407157", relativeToURL: baseURL)

Good Luck