React native generate ProGuard mapping files

Question

I am running crash reporting with firebase and would really like to see the error stack trace.

I get the message:

Upload a ProGuard mapping file to deobfuscate future stack traces for version X

I am just not sure how to generate the file from react-native.

Any help appreciated. Thanks

Answer 1

Firstly generate a release build using ./gradlew assembleRelease or ./gradlew assembleBundle from inside the android directory.

If ProGuard is enabled, a mapping.txt file will be generated in /android/app/build/outputs/mapping/release/mapping.txt.

Uploading this file to Google Play will allow you to deobfuscate stack traces.