title: iOS Simulator (11.1) that comes with Xcode 11.1 GM Seed seems to be unable to boot iOS 13.1 devices
body: <p>I am running Mac OS X Mojave 10.14.6. The only app I have installed is a freshly downloaded Xcode 11.1 GM Seed (11A1027). There are no prior files, projects or apps on this system, as I just wanted to start learning Swift programming.</p>
  
  <p>In Xcode, I have created a fresh project for a single view iOS app. I compiled it without any changes, the build was successful. By default, it launches an iPhone 11 Pro Max on iOS 13.1.</p>
  
  <p>The Simulator launched, the device window appeared and a progress bar was going for a while. After some time, a spinning indicator appeared on a black screen, but nothing ever happened. This went on for a couple minutes, after which Xcode showed this error:</p>
  
  <p>The request to open "com.example.FoodTracker" failed. Unexpected error type.</p>
  
  <pre><code>Details:
  
  The request to open "com.example.FoodTracker" failed.
  Domain: FBSOpenApplicationServiceErrorDomain
  Code: 5
  Failure Reason: Unexpected error type.
  User Info: {
      BSErrorCodeDescription = InvlaidResponse;
  }
  --
  The operation couldn't be completed.
  (BSServiceConnectionErrorDomain error 3.)
  Domain: BSServiceConnectionErrorDomain
  Code: 3
  User Info: {
      BSErrorCodeDescription = OperationFailed;
  }
  --
  </code></pre>
  
  <p>I left the device running in Simulator for quite some time but it never stopped spinning.</p>
  
  <p>I have tried reinstalling Xcode, I deleted the DerivedData directory, did a clean build, reinstalled some Xcode components, but I think there is no issue with Xcode, or the project itself.</p>
  
  <p>In the Simulator, I also tried to "Erase All Contents and Settings", quite a few times, to no avail.
  I tried starting new devices and an iPhone 6s on iOS 12.2 loaded successfully on the first try. On the other hand, I kept trying iOS 13.1 with iPhone 11 Pro Max and iPhone 8 devices, but both get stuck after some loading.</p>
  
  <p>Sometimes I also get this: SpringBoard quit unexpectedly. When I check the details, it seems that a SIGILL terminates it.</p>
  
  <p>Anytime I start an iPhone 11 Pro Max device with iOS 13.1, it keeps spinning endlessly. After checking the system logs, I noticed that the same messages keep looping with ~5s delays inbetween:</p>
  
  <pre><code>Sep 29 08:17:22 Peterdis-iMac SpringBoard[2774]: objc[2774]: Class UIDelayedAction is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore (0x1247c9630) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/KeyboardArbiter.framework/KeyboardArbiter (0x10a3e4a60). One of the two will be used. Which one is undefined.
  Sep 29 08:17:22 Peterdis-iMac SpringBoard[2774]: objc[2774]: Class UIHeldAction is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore (0x1247c9680) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/KeyboardArbiter.framework/KeyboardArbiter (0x10a3e4ab0). One of the two will be used. Which one is undefined.
  Sep 29 08:17:22 Peterdis-iMac SpringBoard[2774]: objc[2774]: Class SPXPCConnection is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/Search.framework/Search (0x130d5a858) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/SpotlightUI.framework/SpotlightUI (0x10b4a1e30). One of the two will be used. Which one is undefined.
  Sep 29 08:17:22 Peterdis-iMac SpringBoard[2774]: objc[2774]: Class SPXPCServer is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/Search.framework/Search (0x130d5a8d0) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/SpotlightUI.framework/SpotlightUI (0x10b4a1ea8). One of the two will be used. Which one is undefined.
  Sep 29 08:17:22 Peterdis-iMac SpringBoard[2774]: objc[2774]: Class SPXPCMessage is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/Search.framework/Search (0x130d5a880) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/SpotlightUI.framework/SpotlightUI (0x10b4a1e58). One of the two will be used. Which one is undefined.
  Sep 29 08:17:22 Peterdis-iMac SpringBoard[2774]: objc[2774]: Class SPApplication is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/Search.framework/Search (0x130d5a448) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/SpotlightUI.framework/SpotlightUI (0x10b4a1f20). One of the two will be used. Which one is undefined.
  Sep 29 08:17:22 Peterdis-iMac SpringBoard[2774]: objc[2774]: Class AFUIPreferences is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/SiriUI.framework/SiriUI (0x10de1a5c8) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/AssistantUI.framework/AssistantUI (0x12a0fb790). One of the two will be used. Which one is undefined.
  Sep 29 08:17:22 Peterdis-iMac SpringBoard[2774]: objc[2774]: Class SBFBokehWallpaperColorArbiter is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/SpringBoardFoundation.framework/SpringBoardFoundation (0x10dce3dd8) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/SpringBoardHome.framework/SpringBoardHome (0x107450800). One of the two will be used. Which one is undefined.
  Sep 29 08:17:22 Peterdis-iMac SpringBoard[2774]: objc[2774]: Class SBFMotionGestureController is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/SpringBoardFoundation.framework/SpringBoardFoundation (0x10dce2050) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/SpringBoard.framework/SpringBoard (0x105a7fde0). One of the two will be used. Which one is undefined.
  Sep 29 08:17:24 Peterdis-iMac SpringBoard[2774]: assertion failed: 18G103 17A844: libxpc.dylib + 83383 [F391B106-5033-3156-98D9-705C5A7FDECD]: 0x7d
  Sep 29 08:17:25 Peterdis-iMac com.apple.CoreSimulator.SimDevice.FA4A0BF0-0673-484C-896D-178314FAFAFF[2657] (com.apple.SpringBoard[2774]): Service exited due to SIGILL | sent by exc handler[2774]
  Sep 29 08:17:25 Peterdis-iMac com.apple.CoreSimulator.SimDevice.FA4A0BF0-0673-484C-896D-178314FAFAFF[2657] (com.apple.SpringBoard): Skipping remaining event endpoints for importance boosting.
  Sep 29 08:17:25 Peterdis-iMac com.apple.CoreSimulator.SimDevice.FA4A0BF0-0673-484C-896D-178314FAFAFF[2657] (com.apple.SpringBoard): Skipping remaining instance endpoints for importance boosting.
  </code></pre>
  
  <p>I've spent all day googling for solutions but nothing helped so far.
  I guess in the meantime I will just start developing for 12.2, assuming that the basics are not too different. Although Xcode clearly generates code for 13.0+ and it yells at me that "some", "View" and such are for newer versions.</p>