Unhandled JS Exception when running build in iOS simulator

Expo SDK
1

Hi,
Trying to get my first Expo app built and tested via TestFlight or at least iOS Simulator.
Built went fine (all according to https://docs.expo.io/versions/latest/distribution/building-standalone-apps ). However when I run the app in iOS simulator I get the following error:
image

If you could help me figure out how to debug this it would be amazing. Otherwise, if you know a fix - that would also work :slight_smile: Thank you!

This is what system.log is showing:

Nov 14 20:38:00 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.securityuploadd): Service only ran for 5 seconds. Pushing respawn out by 5 seconds.
Nov 14 20:38:01 Ilyas-MBP ExpoKitApp[25297]: assertion failed: 18B75 16B91: libxpc.dylib + 79599 [F7D4B188-D5C2-3E5E-BB76-BC7C6A368166]: 0x7d
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.AnnotationKit.MigratorService): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.AnnotationKit.MigratorService): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.AssetCacheLocatorService): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.AssetCacheLocatorService): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.CallKit.CallDirectory): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.CallKit.CallDirectory): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.CallKit.CallDirectoryMaintenance): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.CallKit.CallDirectoryMaintenance): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.MediaPlayer.RemotePlayerService): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.MediaPlayer.RemotePlayerService): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.Photos.CPLDiagnose): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.Photos.CPLDiagnose): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.Safari.History): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.Safari.History): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.Safari.ImageDecoder): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.Safari.ImageDecoder): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.SafariFoundation.AutoFillHelper): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.SafariFoundation.AutoFillHelper): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.SafariFoundation.CredentialProviderExtensionHelper): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.SafariFoundation.CredentialProviderExtensionHelper): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.SafariServices.ContentBlockerLoader): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.SafariServices.ContentBlockerLoader): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.StreamingUnzipService): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.StreamingUnzipService): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Networking): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Networking): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Storage): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Storage): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.WebContent): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.WebContent): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.avkit.SharedPreferences): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.avkit.SharedPreferences): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.backboard.display.archive): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.backboard.display.archive): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.ctcategories.service): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.ctcategories.service): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.imfoundation.IMRemoteURLConnectionAgent): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.imfoundation.IMRemoteURLConnectionAgent): Unknown key for integer: _DirtyJetsamMemoryLimit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.imfoundation.IMRemoteURLConnectionAgent): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.intents.intents-helper): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.intents.intents-helper): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.uifoundation-bundle-helper): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:01 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.uifoundation-bundle-helper): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.StreamingUnzipService): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.StreamingUnzipService): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Networking): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Networking): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Storage): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Storage): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.WebContent): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.WebContent): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.backboard.display.archive): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.backboard.display.archive): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.uifoundation-bundle-helper): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.uifoundation-bundle-helper): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.StreamingUnzipService): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.StreamingUnzipService): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Networking): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Networking): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Storage): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.Storage): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.WebContent): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.WebKit.WebContent): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.backboard.display.archive): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.backboard.display.archive): Unknown key for Boolean: EnablePressuredExit
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.uifoundation-bundle-helper): Unknown key for Boolean: EnableTransactions
Nov 14 20:38:02 Ilyas-MBP com.apple.CoreSimulator.SimDevice.30139277-D27F-45D2-96C1-681B7B2F4F9F[24834] (com.apple.uifoundation-bundle-helper): Unknown key for Boolean: EnablePressuredExit

2

If anyone has suggestions on how to debug this, it would be greatly appreciated it. In all similar threads authors somehow managed to figure it out, but never shared what and how they did.

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