SIGABRT in class AppDelegate


I’am absolutely new to coding with Xcode and swift and tried to build a small game. After running the app on my own device, there was a SIGABRT in the AppDelegate and the screen on my device was blank.

So here is the text from the console:


2018-06-07 19:51:42.252798+0200 howFinnishYouAre[707:124394] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key startGameButtion.'
*** First throw call stack:
(0x18223ed8c 0x1813f85ec 0x18223e9f0 0x182b9444c 0x18c2f0814 0x18c4c28dc 0x18214cb24 0x18c4c12ec 0x18c2f2d1c 0x18bf362e8 0x18be5ad88 0x18be5acc4 0x18be4bf58 0x18be4ad8c 0x1a22a95b4 0x18bed88a0 0x18be4e4e8 0x18be1b854 0x18c44bc14 0x18be1b044 0x18be1aee0 0x18be19d70 0x18caaf87c 0x18be19460 0x18c894af8 0x18c9e2c28 0x18be18e80 0x18be1881c 0x18be15854 0x18be155a4 0x184a42470 0x184a4ad6c 0x105cb919c 0x105cc57cc 0x184a76878 0x184a7651c 0x184a76ab8 0x1821e7404 0x1821e6c2c 0x1821e479c 0x182104da8 0x1840e9020 0x18c1259cc 0x104da0fe4 0x181b95fc0)
libc++abi.dylib: terminating with uncaught exception of type NSException

I absoluty don’t know, what to do. Thank you for help…

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