Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key butp.'
where is my problem?
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There is no way for someone to know **where** the problem is without seeing some code... – Firo Aug 15 '13 at 21:01
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Look at the list of related questions to yours. There are countless existing questions covering this error. – rmaddy Aug 16 '13 at 05:19
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Check your references of your outlets in your XIB, one of them is probably referencing a property (butp) that does not exist anymore
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thanks. my problem solved :) I just deleted the extra button's Outlet (butp)! – nima sp Aug 15 '13 at 21:11