title: [SPApplication _accessibilityInitialize]: unrecognized selector sent to instance on watchOS4
body: <p>Once my watch app starts, it crashes with the following error:</p>
  
  <p><code>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</code></p>
  
  <p>What does the <strong>SPApplication _accessibilityInitialize</strong> means? I do not implement any accessibility functionality yet.</p>
  
  <p>Im running watchOS4 beta 6 and XCode 9 beta 5</p>