whats this error mean (in xcode)? [NSUnknownKeyException] -


this question has answer here:

terminating app due uncaught exception 'nsunknownkeyexception', reason: '[ setvalue:forundefinedkey:]: class not key value coding-compliant key butp.'

where problem?

check references of outlets in xib, 1 of them referencing property (butp) not exist anymore


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