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

Alex Yakir
Alex Yakir
5,425 Points
Posted by Alex Yakir
Alex Yakir
5,425 Points

Hey Guys, Do I need to unwrap forecastURL? coz it looks like I do. Even In your project files I get the same error.

Error: " did you mean to use"!" or "?" "

Chris Rosenberg
Chris Rosenberg
1,864 Points
Chris Rosenberg
Chris Rosenberg
1,864 Points

I'm getting the exact same error!!

Denis Hancock
Denis Hancock
3,796 Points
Denis Hancock
Denis Hancock
3,796 Points

Same error here. Value of optional type 'NSURL?' not unwrapped

Jared Watkins
Jared Watkins
10,756 Points
Jared Watkins
Jared Watkins
10,756 Points

same here. Yocoyani answer worked.

3 Answers

Yocoyani Hernandez
Yocoyani Hernandez
1,817 Points
Yocoyani Hernandez
Yocoyani Hernandez
1,817 Points

I got the same error and I just unwrapped the forecastURL

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

Alex Yakir
Alex Yakir
5,425 Points
Alex Yakir
Alex Yakir
5,425 Points

Thanks Man! Got it :)

mattlebl
mattlebl
10,849 Points

Somewhat trivial, but if you click "Best Answer" under Yocoyani's comment, it will mark it in green text and give them some Treehouse points. :)