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kotlinlang

I spoke to Firebase about this issue recently: `The Crashlytics build ID is missing. This occurs when the Crashlytics Gradle plugin is missing from your app's build configuration.` 
Ultimately no resolution, so I thought Id ask here. The build is setup correctly, and Im even seeing the issue in older (unchanged) projects where things _used_ to work. Specifying `shrinkResources false` gets things working, so Im sure its proguard related, but I cant figure out how to make it keep the build id. Any ideas? :sunflower:

For anyone else finding this - read the issue reported here: <https://github.com/firebase/firebase-android-sdk/issues/5562>