Didn't find class io.sentry.android.core.AppStateStart

[thebigredgeek]

Getting this error after upgrading to @sentry/react-native 5.15.2. We are manually initializing the SDK from native code, rather than javascript, to catch app start crashes.

I can't seem to find a reference to this class in this library or in the sentry-java library.

Any help would be appreciated!!!

[thebigredgeek]

[facugaich]

Hi,

This is because the class was removed in sentry-android 7.1.0, therefore sentry-react-native is not compatible with that version. If you disable the Android SDK autoInstallation you should get the React native SDK compatible version, like this:

apply plugin: "io.sentry.android.gradle"

sentry {
    autoInstallation {
      enabled = false
    }
}

@ sentry team, I think the docs for Manual Setup could be a more explicit on this point. The suggestion to disable autoInstallation is buried in the comment of a code snippet that is introduced as an example ("You can configure the plugin options..."), when it should probably be a required step for the default manual setup.

[focux]

I'm experiencing the same issue and after trying @facugaich workaround it is still crashing for me.

Sentry version:
"@sentry/react-native": "^5.15.1",

Error when using @facugaich's workaround:

E AndroidRuntime: Caused by: java.lang.ClassNotFoundException: Didn't find class "io.sentry.android.core.performance.AppStartMetrics" on path: DexPathList[[zip file "/data/app/~~Aq42l8egZdmLm1xm1OqvkQ==/com.[redacted]-DxwOzqcVtxUmmNTZvby0Cw==/base.apk"],nativeLibraryDirectories=[/data/app/~~Aq42l8egZdmLm1xm1OqvkQ==/com.[redacted]-DxwOzqcVtxUmmNTZvby0Cw==/lib/arm64, /data/app/~~Aq42l8egZdmLm1xm1OqvkQ==/com.[redacted]-DxwOzqcVtxUmmNTZvby0Cw==/base.apk!/lib/arm64-v8a, /system/lib64, /system_ext/lib64]]

Error without workaround:

EDIT:

Downgrading the android plugin from 4.1.1 to 3.11.1, fixed it.

- classpath("io.sentry:sentry-android-gradle-plugin:4.1.1")
+ classpath("io.sentry:sentry-android-gradle-plugin:3.11.1")

[kahest]

Hey all, thanks for reporting this and the helpful details and workarounds 🙏 we'll investigate and follow up here

[krystofwoldrich]

Thank you @facugaich and @focux for sharing your workarounds.

For anyone new reading this issue, here is a summary of what to do:

1. Use the latest Sentry Android Gradle Plugin compatible with sentry-android@6, currently 3.11.1. Add the following to android/build.gradle.

buildscript {
    // ...
    dependencies {
        classpath("io.sentry:sentry-android-gradle-plugin:3.11.1")
    }
}

2. Ensure the Sentry Android Gradle Plugin autoInstall feature is disabled, check android/app/build.gradle:

apply plugin: "io.sentry.android.gradle"

sentry {
    autoInstallation {
      enabled = false
    }
}

We will close this issue since the RN SDK shipped bundled with a compatible sentry-android version. We will post an update when the RN SDK release with sentry-android@7 is available.

[vipulrawat]

Now that sentry-android@7 is released, upgrading to 7.0.0 manually has fixed this issue. Would be nice to have a follow-up sentry-react-native release.

[guilhermeadsferreira]

I couldn't deactivate autoInstallation, is there any forecast for a new release with this fix?

[krystofwoldrich]

@vipulrawat Sentry React Native will include the v7 soon.

@guilhermeadsferreira Could you elaborate on why you can't disable the autoInstall?

[Botsy]

@krystofwoldrich Is there a way to disable the autoInstallation for Expo projects? Our app is crashing and we cannot seem to disable it :(