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Ionic Android RuntimeException FirebaseInitProvider IllegalArgumentException: Given String is empty or null

Project build using Ionic. After generating Android build and import in Android SDK.
It gives error while running app in device/simulator. Also using FCM for push notifications.
Android runtime error after installing APK:
--------- beginning of crash
2018-05-04 16:34:30.077 14810-14810/com.app.name E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.app.name, PID: 14810
java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: java.lang.IllegalArgumentException: Given String is empty or null
at android.app.ActivityThread.installProvider(ActivityThread.java:5856)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:5445)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5384)
at android.app.ActivityThread.-wrap2(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1545)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Caused by: java.lang.IllegalArgumentException: Given String is empty or null
at com.google.android.gms.common.internal.Preconditions.checkNotEmpty(Unknown Source)
at com.google.firebase.auth.api.internal.zzcq.<init>(Unknown Source)
at com.google.firebase.auth.FirebaseAuth.<init>(Unknown Source)
at com.google.firebase.auth.internal.zzj.<init>(Unknown Source)
at com.google.firebase.auth.zzo.create(Unknown Source)
at com.google.firebase.components.zzi.zza(Unknown Source)
at com.google.firebase.components.zzj.get(Unknown Source)
at com.google.firebase.components.zzi.get(Unknown Source)
at com.google.firebase.components.ComponentContainer$$CC.get(Unknown Source)
at com.google.firebase.components.zzg.get(Unknown Source)
at com.google.firebase.components.zzg.zzb(Unknown Source)
at com.google.firebase.FirebaseApp.zzc(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(Unknown Source)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1751)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1726)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(Unknown Source)
at android.app.ActivityThread.installProvider(ActivityThread.java:5853)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:5445) 
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5384) 
at android.app.ActivityThread.-wrap2(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1545) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:154) 
at android.app.ActivityThread.main(ActivityThread.java:6119) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 
Is there a problem with my configuration or is something missing while processing Android build?

I also had same issue and solved that problem now.
In my case, empty, or null value is "current_key" value in google-services.jsonso I fill the value (web API key) found in the Firebase console

Google Cast crash on stop casting

My custom sender application is crashing whenever I'm clicking 'STOP CASTING' on the cast-options menu in the app. The error I'm getting is:
java.lang.NullPointerException: Attempt to write to field 'java.lang.ref.WeakReference android.support.v4.media.session.MediaSessionCompat$Callback.mSessionImpl' on a null object reference
at android.support.v4.media.session.MediaSessionCompat$MediaSessionImplApi21.setCallback(MediaSessionCompat.java:2305)
at android.support.v4.media.session.MediaSessionCompat.setCallback(MediaSessionCompat.java:267)
at android.support.v4.media.session.MediaSessionCompat.setCallback(MediaSessionCompat.java:255)
at com.google.android.gms.internal.zznv.zzen(Unknown Source)
at com.google.android.gms.cast.framework.CastSession.zzei(Unknown Source)
at com.google.android.gms.cast.framework.CastSession.zza(Unknown Source)
at com.google.android.gms.cast.framework.CastSession$zzb.zzei(Unknown Source)
at com.google.android.gms.cast.framework.zzf$zza.onTransact(Unknown Source)
at android.os.Binder.transact(Binder.java:387)
at zv.a(:com.google.android.gms.DynamiteModulesC:199)
at zl.a(:com.google.android.gms.DynamiteModulesC:128)
at aaa.onTransact(:com.google.android.gms.DynamiteModulesC:122)
at android.os.Binder.transact(Binder.java:387)
at com.google.android.gms.cast.framework.zzh$zza$zza.zzb(Unknown Source)
at com.google.android.gms.cast.framework.CastSession.end(Unknown Source)
at com.google.android.gms.cast.framework.Session$zza.end(Unknown Source)
at com.google.android.gms.cast.framework.zzq$zza.onTransact(Unknown Source)
at android.os.Binder.transact(Binder.java:387)
at abc.a(:com.google.android.gms.DynamiteModulesC:216)
at abk.a(:com.google.android.gms.DynamiteModulesC:303)
at acg.a(:com.google.android.gms.DynamiteModulesC:70)
at acg.e(:com.google.android.gms.DynamiteModulesC:38)
at acd.onTransact(:com.google.android.gms.DynamiteModulesC:126)
at android.os.Binder.transact(Binder.java:387)
at com.google.android.gms.internal.zznn$zza$zza.zzg(Unknown Source)
at com.google.android.gms.internal.zznq.onRouteUnselected(Unknown Source)
at android.support.v7.media.MediaRouter$Callback.onRouteUnselected(MediaRouter.java:1787)
at android.support.v7.media.MediaRouter$GlobalMediaRouter$CallbackHandler.invokeCallback(MediaRouter.java:2999)
at android.support.v7.media.MediaRouter$GlobalMediaRouter$CallbackHandler.handleMessage(MediaRouter.java:2946)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
and I can't seem to find anyone with this error. I've followed https://github.com/googlecast/CastHelloText-android/ to the point. I will post the full activity here if it's wanted.

I've found answer on google issue tracking system on https://issuetracker.google.com/issues/37129745
In short, update v7 supprt library to 25.1.1

FirebaseStorage.getInstance().getReference() crashes app

FirebaseStorage.getInstance().getReference() crashes the app. I have checked another similar post but that did not help as my google-services.json file is correctly downloaded from FireBase API and the FireBase assistant shows connection and status as 'OK'.
here's the log:
A/FirebaseApp: Firebase API initialization failure.
java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.google.firebase.FirebaseApp.zza(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(Unknown Source)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1737)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1712)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(Unknown Source)
at android.app.ActivityThread.installProvider(ActivityThread.java:6487)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6082)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6022)
at android.app.ActivityThread.access$1700(ActivityThread.java:211)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1766)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6946)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal .os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404)
at com.android.internal .os.ZygoteInit.main(ZygoteInit.java:1199)
Caused by: java.lang.NoSuchMethodError: No static method getNoBackupFilesDir(Landroid/content/Context;)Ljava/io/File; in class Lcom/google/android/gms/common/util/zzx; or its super classes (declaration of 'com.google.android.gms.common.util.zzx' appears in /data /data /com.example.bhrigu.simpleblog/files/instant-run/dex/slice-com.google.android.gms-play-services-basement-10.0.0_c06534ef2c8c0d287af412696f22ee66b12bcbfa-classes.dex)
at com.google.firebase.iid.zzg.zzkg(Unknown Source)

There was indeed a conflict with the google-play version. Initially, I had used version 9.2.0 for Firebase libraries as I was getting errors with 10.0.0. However fixing the google-play version seems to have taken care of those ones as well. And I am able to run with all the updated libraries.

numberformatexception facebook ads

I recently added facebook ads to my app. Till yesterday it was working fine but from today the app is crashing because of facebook ads.The stack trace is :
E/UncaughtException: java.lang.NumberFormatException: Invalid int: "false"
at java.lang.Integer.invalidInt(Integer.java:138)
at java.lang.Integer.parse(Integer.java:410)
at java.lang.Integer.parseInt(Integer.java:367)
at java.lang.Integer.parseInt(Integer.java:334)
at java.lang.Integer.valueOf(Integer.java:525)
at com.facebook.ads.internal.h.a(Unknown Source)
at com.facebook.ads.internal.h.h(Unknown Source)
at com.facebook.ads.internal.j.a.a(Unknown Source)
at com.facebook.ads.internal.j.a$b.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5276)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:911)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:706)
please help me solve this error

ProGuard causing Jackson error, "Conflicting property name definitions"

I am using the Nest Android SDK and am getting close to releasing my application. I have found that it is not possible to use Proguard with the Nest SDK as it stands today. Once a user is authenticated, the data that comes back causes the crash below.
How can I get passed this, and still keep ProGuard enabled? I created an issue on the github page but I assume it will not be a high priority by Nest.
09-06 23:49:32.807 15229-15229/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: <my_package>, PID: 15229
java.lang.IllegalStateException: Conflicting property name definitions: 'locale' (for [field com.nestlabs.sdk.Device#b]) vs 'name' (for [method com.nestlabs.sdk.Device#b(0 params)])
at com.fasterxml.jackson.databind.introspect.POJOPropertyBuilder.findRenamed(Unknown Source)
at com.fasterxml.jackson.databind.introspect.POJOPropertyBuilder.findNewName(Unknown Source)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector._renameProperties(Unknown Source)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.collect(Unknown Source)
at com.fasterxml.jackson.databind.introspect.BasicClassIntrospector.collectProperties(Unknown Source)
at com.fasterxml.jackson.databind.introspect.BasicClassIntrospector.forDeserialization(Unknown Source)
at com.fasterxml.jackson.databind.introspect.BasicClassIntrospector.forDeserialization(Unknown Source)
at com.fasterxml.jackson.databind.DeserializationConfig.introspect(Unknown Source)
at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer(Unknown Source)
at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(Unknown Source)
at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(Unknown Source)
at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(Unknown Source)
at com.fasterxml.jackson.databind.DeserializationContext.findRootValueDeserializer(Unknown Source)
at com.fasterxml.jackson.databind.ObjectMapper._findRootDeserializer(Unknown Source)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(Unknown Source)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(Unknown Source)
at com.firebase.client.d.a(Unknown Source)
at com.nestlabs.sdk.aa.a(Unknown Source)
at com.firebase.client.c.ba.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)