问题 Crashlytics works just fine without opt-in reporting. But it stops reporting anything as soon as I set up opt-in reporting according to the tutorial. Specifically, I added the following content to AndroidManifest.xml <meta-data android:name="firebase_crashlytics_collection_enabled" android:value="false" /> And I added the following into the onCreate : Fabric.with(this, Crashlytics()) With a debugger, I am sure that the above line has been executed. However, nothing is reported to the