Chapter 4 page 71 - unexpectedly found nil while unwrapping an Optional value

#1

Fails on ‘celsiusLabel.text = text’ I have checked that the sent Event is connected To CoversionViewController

Error Message:

2016-07-25 10:14:34.690 temperature converter[47195:1869893] Can't find keyplane that supports type 8 for keyboard iPhone-PortraitChoco-DecimalPad; using 1022227301_PortraitChoco_iPhone-Simple-Pad_Default
fatal error: unexpectedly found nil while unwrapping an Optional value
(lldb) 

@IBAction func fahrenheitFieldEditingChanged(textField: UITextField) { if let text = textField.text where !text.isEmpty { celsiusLabel.text = text } else { celsiusLabel.text = "???" } }

#2

Solved the problem I missed connect Celsius to to CelsiusLabel