Fabric crashlytics with Firebase unable to upload crash

Question

I'm just trying to migrate Fabric Crashlytics with Firebase, so I just followed the guide https://firebase.google.com/docs/crashlytics/get-started

Everything compiles and the app can be launched. So I want to simulate a crash with Crashlytics.getInstance().crash(); as I already used before.

The app crashes as expected, but the crash is not uploaded to firebase and I have this strange stack:

E/Fabric: Error performing auto configuration.
                                               io.fabric.sdk.android.services.network.HttpRequest$HttpRequestException: java.net.ProtocolException: Too many follow-up requests: 21
                                                   at io.fabric.sdk.android.services.network.HttpRequest.code(HttpRequest.java:1355)
                                                   at io.fabric.sdk.android.services.settings.AbstractAppSpiCall.invoke(AbstractAppSpiCall.java:86)
                                                   at io.fabric.sdk.android.services.settings.UpdateAppSpiCall.invoke(UpdateAppSpiCall.java:29)
                                                   at io.fabric.sdk.android.Onboarding.performUpdateApp(Onboarding.java:204)
                                                   at io.fabric.sdk.android.Onboarding.performUpdateApp(Onboarding.java:194)
                                                   at io.fabric.sdk.android.Onboarding.performAutoConfigure(Onboarding.java:175)
                                                   at io.fabric.sdk.android.Onboarding.doInBackground(Onboarding.java:112)
                                                   at io.fabric.sdk.android.Onboarding.doInBackground(Onboarding.java:45)
                                                   at io.fabric.sdk.android.InitializationTask.doInBackground(InitializationTask.java:63)
                                                   at io.fabric.sdk.android.InitializationTask.doInBackground(InitializationTask.java:28)
                                                   at io.fabric.sdk.android.services.concurrency.AsyncTask$2.call(AsyncTask.java:311)
                                                   at java.util.concurrent.FutureTask.run(FutureTask.java:237)
                                                   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:428)
                                                   at java.util.concurrent.FutureTask.run(FutureTask.java:237)
                                                   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
                                                   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
                                                   at java.lang.Thread.run(Thread.java:762)
                                                Caused by: java.net.ProtocolException: Too many follow-up requests: 21
                                                   at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:451)
                                                   at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:567)
                                                   at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getResponseCode(DelegatingHttpsURLConnection.java:105)
                                                   at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java)

Anyone already had encountered this error?

Answer 1

This can happen when you strip the API key from Fabric when migrating from Fabric to Firebase Crashlytics, which is not currently supported. When migrating, keep your API key in your project.