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iOS Network Programming with Swift 2 Modeling Forecast Data Stubbing the Data

Posted by Chris Smith
Chris Smith
6,791 Points

Why's this occurring? "terminating with uncaught exception of type NSException".

Please let me know what i've done wrong. I've followed along inline with the course tutorials. As soon as I attempt to run my app the following line of code is highlighted red within the AppDelegate.swift:

 class AppDelegate: UIResponder, UIApplicationDelegate {

Also, the following error reads in the console: "terminating with uncaught exception of type NSException (lldb)"

The app was working fine before I entered code into ViewController.swift

 import UIKit

 extension CurrentWeather {
 var temperatureString: String {
 return "\(Int(temperature))º"
 }


 class ViewController: UIViewController {

@IBOutlet weak var currentTemperatureLabel: UILabel!
@IBOutlet weak var currentHumidityLabel: UILabel!
@IBOutlet weak var currentPrecipitationLabel: UILabel!
@IBOutlet weak var currentWeatherIcon: UIImageView!
@IBOutlet weak var currentSummaryLabel: UILabel!
@IBOutlet weak var refreshButton: UIButton!
@IBOutlet weak var activityIndicator: UIActivityIndicatorView!


    override func viewDidLoad() {
    super.viewDidLoad()

    let icon = WeatherIcon.PartlyCloudyDay.image
    let currentWeather = CurrentWeather(temperature: 56.0, humidity: 1.0, precipitationProbability: 1.0, summary: "Wet and rainy!", icon: icon)

    display(weather: currentWeather)
}


override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

func display(weather: CurrentWeather){
 currentTemperatureLabel.text = weather.temperatureString
}
}
}
ianhan3
ianhan3
4,263 Points

There may be a more descriptive error if you scroll up in the console. Is there anything above the slew numbers?

Chris Smith
Chris Smith
6,791 Points

Hi Ian Han, thank you for your prompt response. Is this what you mean?

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController     0x7f8341d05740> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key activityIndicator.'
*** First throw call stack:

1 Answer

ianhan3
ianhan3
4,263 Points

The answer in your console log is the line: "this class is not key value coding-compliant for the key activityIndicator."

Go back to IB and check to make sure activityIndicator is hooked up properly. Generally that is the issue when you have that error message.

Chris Smith
Chris Smith
6,791 Points

Ian Han, everything appears to be okay. I don't know if it has anything to do with my updating Xcode to Swift 3.0?

ianhan3
ianhan3
4,263 Points

Shouldn't be. Here are some options to try. Alternatively, you can shoot me the project at ihan616@gmail.com and I can take a look.

Chris Smith
Chris Smith
6,791 Points

Thanks Ian Han, everything seemed to be okay until I tampered with the following line of code: 

       func display(weather: CurrentWeather){
      currentTemperatureLabel.text = weather.temperatureString
Chris Smith
Chris Smith
6,791 Points

I've emailed you the project Ian. Thank you so much for your help.