objective c - Xcode 6.2 iOS target 6.1: self.view endEditing:YES throws exception unrecognized selector sent to instance -

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i have textfield pulls decimal pad keyboard. added tap gesture recognizer in .xib , want close keyboard when taps on screen.

@property (weak, nonatomic) iboutlet uitextfield *billtextfield; - (ibaction)ontap:(id)sender; @end @implementation tipviewcontroller - (ibaction)ontap:(id)sender {     self.title = @"tap detected";     [self.view endediting:yes]; } @end

this throws following exception:

[tipviewcontroller billtextfield:]: unrecognized selector sent instance 0x7fd6dac50630 2015-03-28 22:19:59.747 tipcalculator[32959:3666939] *** terminating app due uncaught exception 'nsinvalidargumentexception', reason: '-[tipviewcontroller billtextfield:]: unrecognized selector sent instance 0x7fd6dac50630'

what missing here?


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