The error 'Thread 1: Fatal error: unexpectedly found nil while unwrapping an Optional' occurs when you try to use an Optional variable without safely unwrapping it, and it happens to be nil. This often happens if you are trying to access UI elements (like labels or buttons) before they are initialized or if you are assuming that a value will always be present when it isn’t.
// Swift Example
var myLabel: UILabel?
// Force unwrapping, this can cause a runtime crash if 'myLabel' is nil
let labelText = myLabel!.text
// Safely unwrap using optional binding
if let safeLabel = myLabel {
let labelText = safeLabel.text
} else {
print("myLabel is nil")
}
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