java.lang.RuntimeException: Internal error in Firestore (0.6.6-dev)

Issue

I am using FireStore in my application. and their version is implementation 'com.google.firebase:firebase-firestore:17.0.1'

I am using database of Firestore and offline feature of firestore to get data.

this is working fine but when i sign the application that time i am getting below bug.

   E/AndroidRuntime: FATAL EXCEPTION: main
   Process: com.firestoretest.videostatus, PID: 13763
   java.lang.RuntimeException: Internal error in Firestore (0.6.6-dev).
       at bov.b(Unknown Source:19)
       at box.run(Unknown Source:2)
       at android.os.Handler.handleCallback(Handler.java:789)
       at android.os.Handler.dispatchMessage(Handler.java:98)
       at android.os.Looper.loop(Looper.java:172)
       at android.app.ActivityThread.main(ActivityThread.java:6637)
       at java.lang.reflect.Method.invoke(Native Method)
       at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
    Caused by: java.lang.ExceptionInInitializerError
       at cbh.<clinit>(Unknown Source:20)
       at ced.b(Unknown Source:0)
       at cee.b(Unknown Source:0)
       at cee.a(Unknown Source:0)
       at car.a(Unknown Source:4)
       at bod.<init>(Unknown Source:22)
       at bjo.a(Unknown Source:87)
       at bjq.run(Unknown Source:8)
       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:457)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:301)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
       at bov$a.run(Unknown Source:15)
       at java.lang.Thread.run(Thread.java:764)
    Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Package.getImplementationVersion()' on a null object reference
       at cco.b(Unknown Source:6)
       at cco.<clinit>(Unknown Source:137)
       at cbh.<clinit>(Unknown Source:20) 
       at ced.b(Unknown Source:0) 
       at cee.b(Unknown Source:0) 
       at cee.a(Unknown Source:0) 
       at car.a(Unknown Source:4) 
       at bod.<init>(Unknown Source:22) 
       at bjo.a(Unknown Source:87) 
       at bjq.run(Unknown Source:8) 
       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:457) 
       at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
       at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:301) 
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162) 
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636) 
       at bov$a.run(Unknown Source:15) 
       at java.lang.Thread.run(Thread.java:764)

Please anyone have any idea about this error then please inform me. Thanks in Advance.

Solution

Try to add -keep class io.grpc.** {*;} to your proguard configuration. It should work. There haven't been any crashes since I added it. Will be testing further.

Answered By - Алексей DominuS