hello

[mohannadbahar]

hello how are you
i have this problem when i run ur code
the error is :-
W/System.err: io.reactivex.exceptions.OnErrorNotImplementedException: Firebase document not exists
at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:704)
at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:701)
at io.reactivex.internal.observers.LambdaObserver.onError(LambdaObserver.java:77)
at io.reactivex.internal.observers.BasicFuseableObserver.onError(BasicFuseableObserver.java:100)
at io.reactivex.internal.operators.observable.ObservableCreate$CreateEmitter.tryOnError(ObservableCreate.java:85)
at io.reactivex.internal.operators.observable.ObservableCreate$CreateEmitter.onError(ObservableCreate.java:73)
at com.github.abdularis.trackmylocation.data.rxfirestore.FirestoreDocumentOnSubscribe$DocEventListener.onEvent(FirestoreDocumentOnSubscribe.java:60)
at com.github.abdularis.trackmylocation.data.rxfirestore.FirestoreDocumentOnSubscribe$DocEventListener.onEvent(FirestoreDocumentOnSubscribe.java:44)
at com.google.firebase.firestore.DocumentReference.zza(Unknown Source:59)
at com.google.firebase.firestore.zzd.onEvent(Unknown Source:6)
at com.google.android.gms.internal.zzeyn.zza(Unknown Source:6)
at com.google.android.gms.internal.zzeyo.run(Unknown Source:6)
at android.os.Handler.handleCallback(Handler.java:907)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:216)
at android.app.ActivityThread.main(ActivityThread.java:7506)
W/System.err: at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:956)
Caused by: com.github.abdularis.trackmylocation.data.rxfirestore.errors.DocumentNotExistsException: Firebase document not exists
... 13 more
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.github.abdularis.trackmylocation, PID: 13510
io.reactivex.exceptions.OnErrorNotImplementedException: Firebase document not exists
at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:704)
at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:701)
at io.reactivex.internal.observers.LambdaObserver.onError(LambdaObserver.java:77)
at io.reactivex.internal.observers.BasicFuseableObserver.onError(BasicFuseableObserver.java:100)
at io.reactivex.internal.operators.observable.ObservableCreate$CreateEmitter.tryOnError(ObservableCreate.java:85)
at io.reactivex.internal.operators.observable.ObservableCreate$CreateEmitter.onError(ObservableCreate.java:73)
at com.github.abdularis.trackmylocation.data.rxfirestore.FirestoreDocumentOnSubscribe$DocEventListener.onEvent(FirestoreDocumentOnSubscribe.java:60)
at com.github.abdularis.trackmylocation.data.rxfirestore.FirestoreDocumentOnSubscribe$DocEventListener.onEv

so how can i solve this problem and another Q
how can i use the backend file