[SPApplication _accessibilityInitialize]: unerkannter Selektor, der an Instanz auf watchOS4 gesendet wurde

Sobald meine Überwachungs-App gestartet wird, stürzt sie mit dem folgenden Fehler ab:

2017-08-17 13:59:54.304792-0300 watchOS4 Extension[11500:1617313] -[SPApplication _accessibilityInitialize]: unrecognized selector sent to instance 0x79e5b8f0 2017-08-17 13:59:56.173675-0300 watchOS4 Extension[11500:1617313] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[SPApplication _accessibilityInitialize]: unrecognized selector sent to instance 0x79e5b8f0' *** First throw call stack: ( 0 CoreFoundation 0x015ae80d __exceptionPreprocess + 189 1 libobjc.A.dylib 0x00f22bcf objc_exception_throw + 49 2 CoreFoundation 0x0162f978 -[NSObject(NSObject) doesNotRecognizeSelector:] + 136 3 CoreFoundation 0x015322c4 ___forwarding___ + 1300 4 CoreFoundation 0x01531d8e _CF_forwarding_prep_0 + 14 5 UIAccessibility 0x19a13e2c __54+[UIAccessibilityLoader _accessibilityLoadSubbundles:]_block_invoke.338 + 44 6 libdispatch.dylib 0x05f990bf _dispatch_call_block_and_release + 15 7 libdispatch.dylib 0x05f9a42c _dispatch_client_callout + 14 8 libdispatch.dylib 0x05fa4e88 _dispatch_main_queue_callback_4CF + 1204 9 CoreFoundation 0x0157116e __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 14 10 CoreFoundation 0x0153677e __CFRunLoopRun + 3310 11 CoreFoundation 0x015357e5 CFRunLoopRunSpecific + 373 12 CoreFoundation 0x0153565a CFRunLoopRunInMode + 122 13 GraphicsServices 0x08fde249 GSEventRunModal + 71 14 GraphicsServices 0x08fde12e GSEventRun + 80 15 UIKit 0x01a402d1 UIApplicationMain + 148 16 libxpc.dylib 0x06350a67 _xpc_objc_main + 528 17 libxpc.dylib 0x063533a0 xpc_main + 158 18 Foundation 0x009543c5 -[NSXPCListener resume] + 185 19 PlugInKit 0x057be28b -[PKService run] + 799 20 WatchKit 0x001cd123 main + 160 21 libdyld.dylib 0x05ffdd41 start + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException

Was bedeutet die SPApplication _accessibilityInitialize ? Ich implementiere noch keine Funktionalität für die Zugänglichkeit.

Ich habe watchOS4 beta 6 und XCode 9 beta 5