this sample code crash many times when running. Is any solution to fix this? The full log is:
2016-09-07 10:13:21.674 WitHelloWorld[3288:804966] * Terminating app due to uncaught exception 'NSRangeException', reason: 'Cannot remove an observer <WITMicButton 0x15e679ba0> for the key path "power" from <WITRecorder 0x15e718530> because it is not registered as an observer.'
* First throw call stack:
(0x18182edb0 0x180e93f80 0x18182ecf8 0x1821450a8 0x182144b84 0x1000bd94c 0x1000bf784 0x1000bfad0 0x1000c12e8 0x181e8e648 0x1821e8540 0x18213a870 0x18212ae48 0x1821ea934 0x100155a3c 0x10015b4e4 0x1817e4d50 0x1817e2bb8 0x18170cc50 0x182ff4088 0x1869f6088 0x1000b9b28 0x1812aa8b8)
libc++abi.dylib: terminating with uncaught exception of type NSException
this sample code crash many times when running. Is any solution to fix this? The full log is:
2016-09-07 10:13:21.674 WitHelloWorld[3288:804966] * Terminating app due to uncaught exception 'NSRangeException', reason: 'Cannot remove an observer <WITMicButton 0x15e679ba0> for the key path "power" from <WITRecorder 0x15e718530> because it is not registered as an observer.' * First throw call stack: (0x18182edb0 0x180e93f80 0x18182ecf8 0x1821450a8 0x182144b84 0x1000bd94c 0x1000bf784 0x1000bfad0 0x1000c12e8 0x181e8e648 0x1821e8540 0x18213a870 0x18212ae48 0x1821ea934 0x100155a3c 0x10015b4e4 0x1817e4d50 0x1817e2bb8 0x18170cc50 0x182ff4088 0x1869f6088 0x1000b9b28 0x1812aa8b8) libc++abi.dylib: terminating with uncaught exception of type NSException