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iOS

Aaryen Singh
Aaryen Singh
1,688 Points
Posted by Aaryen Singh
Aaryen Singh
1,688 Points

Help please with - Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value

HI I'm getting this error: 2019-05-05 13:55:01.709309+0100 FunFacts[26757:959593] Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value

my app builds succeeds and then crashes when loading with this error. my code is this on the error page

import UIKit

class ViewController: UIViewController {

@IBOutlet weak var funFactLabel: UILabel!
let factProvider = FactProvider()

override func viewDidLoad() {
    super.viewDidLoad()

    funFactLabel.text = factProvider.randomFact()
}

@IBAction func showFact() {
 funFactLabel.text = factProvider.randomFact()

} }

The error is on line: funFactLabel.text = factProvider.randomFact() Thread 1: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value

2 Answers

jakubhirner
jakubhirner
14,784 Points
jakubhirner
jakubhirner
14,784 Points

The problem is that you probably deleted the label at some point and than add it back to the storyboard.

Hover your mouse on the circle next to @IBoutlet weak var funFactLabel: UILabel!, the label should highlight. If it doesn't right click on the label and drag form the "New referencing outlet" to @IBOutlet weak var funFactLabel: UILabel! in your viewController class.

Aaryen Singh
Aaryen Singh
1,688 Points
Aaryen Singh
Aaryen Singh
1,688 Points

Thank you, it has helped me!