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iOS Build a Weather App with Swift (Retired) Concurrency Writing Concurrent Networking Code

Posted by Asim Zaidi
Asim Zaidi
2,222 Points

Error in sharedSession singleton closure

I am following the vide but I am blocked by this nasty error

here is my code

    let baseUrl = NSURL(string: "https://api.forecast.io/forecast/\(apiKey)/")
    let forecast = NSURL(string: "47.856223,-122.272590", relativeToURL: baseUrl)
    let sharedSession = NSURLSession.sharedSession()
    let downloadTask: NSURLSessionDownloadTask =
    sharedSession.downloadTaskWithURL( forecast, completionHandler:
        { (loction: <#NSURL!#>, response: <#NSURLResponse!#>, error: <#NSError!#>) -> Void in
            println(response);
        })

}

here is where error happens { (loction: <#NSURL!#>, response: <#NSURLResponse!#>, error: <#NSError!#>) -> Void in println(response); })

here is error

1-expected an identifier to name generic parameter 2- expect parameter type following :

2 Answers

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Asim,

The issue is occurring with the below.

(loction: <#NSURL!#>, response: <#NSURLResponse!#>, error: <#NSError!#>) -> Void in
Why?

Something such as <#NSURL!#> as it's invalid syntax and not a valid type, instead you want the the following.

(loction: NSURL!, response: NSURLResponse!, error: NSError!) -> Void in

Happy coding!

Asim Zaidi
Asim Zaidi
2,222 Points
Asim Zaidi
Asim Zaidi
2,222 Points

that worked! thanks