Sentry-react-native: Unhandled Promise rejection causes UnexpectedNativeTypeException

[matthias-pichler-warrify]

OS:

• [x] Windows
• [x] MacOS
• [ ] Linux

_Platform:_

• [ ] iOS
• [x] Android

SDK:

• [ ] @sentry/react-native
• [x] react-native-sentry

react-native version: 0.60.5

Init Code:

Sentry.init({
  dsn: Config.SENTRY_DSN,
  environment: process.env.NODE_ENV || 'development'
});

---

I have following issue:

When a promise rejection is not handled the sentry sdk crashes with an UnexpectedNativeTypeException. But only if the promise rejects with an object that is not of type Error. So Promise.reject({bar: 'foo'}); will crash but Promise.reject(new Error('foo')); and Promise.reject('foo'); will not.

react-native info

info Fetching system and libraries information...
System:
    OS: macOS 10.14.6
    CPU: (8) x64 Intel(R) Core(TM) i7-8569U CPU @ 2.80GHz
    Memory: 105.25 MB / 16.00 GB
    Shell: 5.3 - /bin/zsh
  Binaries:
    Node: 12.9.1 - /usr/local/bin/node
    Yarn: 1.17.3 - /usr/local/bin/yarn
    npm: 6.10.3 - /usr/local/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  SDKs:
    iOS SDK:
      Platforms: iOS 12.4, macOS 10.14, tvOS 12.4, watchOS 5.3
  IDEs:
    Android Studio: 3.5 AI-191.8026.42.35.5791312
    Xcode: 10.3/10G8 - /usr/bin/xcodebuild
  npmPackages:
    react: ^16.9.0 => 16.9.0 
    react-native: ^0.60.5 => 0.60.5 
  npmGlobalPackages:
    react-native-cli: 2.0.1

screenshot:

stacktrace in logcat:

09-05 13:56:09.528  7448  7530 E unknown:ReactNative: Exception in native call
09-05 13:56:09.528  7448  7530 E unknown:ReactNative: com.facebook.react.bridge.UnexpectedNativeTypeException: Value for message cannot be cast from ReadableNativeMap to String
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at com.facebook.react.bridge.ReadableNativeMap.checkInstance(ReadableNativeMap.java:141)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at com.facebook.react.bridge.ReadableNativeMap.getNullableValue(ReadableNativeMap.java:129)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at com.facebook.react.bridge.ReadableNativeMap.getString(ReadableNativeMap.java:163)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at io.sentry.RNSentryModule.sendEvent(RNSentryModule.java:209)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at java.lang.reflect.Method.invoke(Native Method)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at com.facebook.react.bridge.JavaMethodWrapper.invoke(JavaMethodWrapper.java:372)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at com.facebook.react.bridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:158)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at android.os.Handler.handleCallback(Handler.java:873)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at android.os.Handler.dispatchMessage(Handler.java:99)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:29)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at android.os.Looper.loop(Looper.java:193)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at com.facebook.react.bridge.queue.MessageQueueThreadImpl$4.run(MessageQueueThreadImpl.java:232)
09-05 13:56:09.528  7448  7530 E unknown:ReactNative:   at java.lang.Thread.run(Thread.java:764)

Steps to reproduce:
-

Promise.reject({bar: 'foo'});

Actual result:

• App crashes with UnexpectedNativeTypeException

Expected result:

• Report promise rejection

[HazAT]

Thanks for clarifying the other issue and thanks for the detailed and helpful bug report.
I will fix this and let you know when the new release is out.

[agarant]

With previous versions, it was possible to set handlePromiseRejection: false. Is there any way to work around this issue with v1 ?

[HazAT]

@agarant
You should be able to do:

Sentry.init({
  ...
  integrations: [
    new Sentry.BrowserIntegrations.GlobalHandlers({
      onerror: true,
      onunhandledrejection: false
    })
  ]
});

[HazAT]

Please test 1.0.5 the issue should be fixed there.

[edo1493]

Hey guys,

I am getting the same in production on react-native 0.61.2 and sentry 1.0.7.

I am not able to reproduce on a device, but it seems to be Android only.

I can see a few of these events showing up in production.

com.facebook.react.bridge.UnexpectedNativeTypeException: Value for level cannot be cast from ReadableNativeMap to String
    at com.facebook.react.bridge.ReadableNativeMap.checkInstance(ReadableNativeMap.java:139)
    at com.facebook.react.bridge.ReadableNativeMap.getNullableValue(ReadableNativeMap.java:127)
    at com.facebook.react.bridge.ReadableNativeMap.getString(ReadableNativeMap.java:161)
    at io.sentry.RNSentryModule.eventLevel(RNSentryModule.java:436)
    at io.sentry.RNSentryModule.sendEvent(RNSentryModule.java:175)
    at java.lang.reflect.Method.invoke(Method.java)
    at com.facebook.react.bridge.JavaMethodWrapper.invoke(JavaMethodWrapper.java:371)
    at com.facebook.react.bridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:150)
    at com.facebook.react.bridge.queue.NativeRunnable.run(NativeRunnable.java)
    at android.os.Handler.handleCallback(Handler.java:873)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:26)
    at android.os.Looper.loop(Looper.java:193)
    at com.facebook.react.bridge.queue.MessageQueueThreadImpl$4.run(MessageQueueThreadImpl.java:225)
    at java.lang.Thread.run(Thread.java:764)

The error is the following.

Value for level cannot be cast from ReadableNativeMap to String

EDIT: I have tried with the Promise, as mentioned above, and I can see an event being recorded on the sentry dashboard, but I didn't get any crash, just the following:

{ NativeMap: {"bar":"foo"} }

@HazAT any idea? 😅

[matt-dalton]

I'm seeing the same error. react-native 0.60.6 and sentry 1.0.7.

[edo1493]

I have got this straight after upgrading from react-native 0.59.5 to 0.61.2

[acollazomayer]

same here with react version 0.61.2 adn sentry 1.0.9

[mimitch2]

Same here react native version 0.60.6 sentry 1.0.9

[paul-doherty]

Also seeing it here RN 0.61.2 Sentry 1.0.9

[MikeWoots]

Also happening for me on RN 0.60.5 Sentry 1.0.9

Error message Value for level cannot be cast from ReadableNativeMap to String

[MikeWoots]

Fixed this issue by changing

Sentry.captureMessage('My message', { level: Sentry.Severity.Debug, });

to

Sentry.captureMessage('My message', Sentry.Severity.Debug);