-4
'NSUnknownKeyException',
reason: '[<UIApplication 0xde7b110> setValue:forUndefinedKey:]:
this class is not key value coding-compliant for the key guessText.'

my app keeps crashing, why?

Macmade
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Alex Grossman
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  • What's wrong with **reading** the exception message? – Macmade Aug 31 '12 at 17:18
  • Have you checked that guessText is set up correctly and referenced correctly at all times? is it duplicated between classes. Check some other threads on this same error. http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key – Augie Aug 31 '12 at 17:18
  • Probably because `setValue:forUndefinedKey:` is not key value coding-compliant for the key `guessText`. – woz Aug 31 '12 at 17:20
  • It would be great if you could add more info. Like what kind of program are you running, what is your development environment, etc. You might could try putting some try/catch statements in your program, or even simple output after function calls. Try narrowing it down some. – redhotspike Aug 31 '12 at 17:21
  • im running xcode 4.4 and im adding the app onto my phone which runs ios5.1 – Alex Grossman Aug 31 '12 at 17:24

1 Answers1

3

While this can happen for lots of reasons, this error is most frequently seen when you have some view you've designed in Interface Builder that references a non-existent IBOutlet, in your case one called guessText. Perhaps you had one that you subsequently renamed or removed from your .h? Open up your NIB/storyboard in Interface Builder, and look at the outlets, and see if you can find the one that's referencing guessText and fix that accordingly (either delete the outlet or create the IBOutlet in your code).

Rob
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