IOS Exception 1 (libc++abi.dylib:terminating with uncaught Exception of type NSException)

2014-08-05 22:18:46.455 swiftui[1329:40871]-[_ttc7swiftui14mviewcontroler ClickMe]: Unrecognized selector sent to Instance 0x10ea15dc0

2014-08-05 22:18:46.458 swiftui[1329:40871] * * * terminating app due to uncaught exception ' Nsinvalidargumentexception ', R Eason: '-[_ttc7swiftui14mviewcontroler ClickMe]: Unrecognized selector sent to instance 0x10ea15dc0 '

First throw Call stack:

(

0 corefoundation 0x0000000100463995 __exceptionpreprocess + 165

1 LIBOBJC. A.dylib 0X0000000101EEF9A3 Objc_exception_throw + 45

2 corefoundation 0x0000000100469e8d-[nsobject (nsobject) Doesnotrecognizeselector:] + 205

3 corefoundation 0x00000001003c391c ___forwarding___ + 988

4 corefoundation 0x00000001003c34b8 _cf_forwarding_prep_0 + 120

5 UIKit 0x0000000100cdd6b6-[uiapplication sendAction:to:from:forEvent:] + 75

6 UIKit 0x0000000100ddf1c0-[uicontrol _sendactionsforevents:withevent:] + 467

7 UIKit 0x0000000100dde58f-[uicontrol touchesended:withevent:] + 522

8 UIKit 0x0000000100d223b8-[uiwindow _sendtouchesforevent:] + 735

9 UIKit 0x0000000100d22ce3-[uiwindow sendevent:] + 683

Ten UIKit 0x0000000100cf01a1-[uiapplication sendevent:] + 246

UIKit 0x0000000100cfd07a _uiapplicationhandleeventfromqueueevent + 17591

UIKit 0x0000000100cd9269 _uiapplicationhandleeventqueue + 1967

Corefoundation 0x0000000100399a31 __cfrunloop_is_calling_out_to_a_source0_perform_function__ + 17

Corefoundation 0x000000010038f26d __cfrunloopdosources0 + 269

Corefoundation 0x000000010038e8a4 __cfrunlooprun + 868

Corefoundation 0X000000010038E2D6 cfrunlooprunspecific + 470

Graphicsservices 0X00000001040CCBBC Gseventrunmodal + 161

UIKit 0x0000000100cdc288 Uiapplicationmain + 1282

Swiftui 0x0000000100002b6d Top_level_code + 77

Swiftui 0x0000000100002baa main + 42

Libdyld.dylib 0x0000000102478145 start + 1

)

Libc++abi.dylib:terminating with uncaught exception of type NSException

(LLDB)