React-native-firebase: Exception in Host Object::get: <unknown> on React-Native 0.59.1.

[smartfung]

Issue

I got a error "Exception in Host Object::get: " on android.
I used React-Native 0.59.1.

---

Project Files

Android

android/build.gradle:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext {
        buildToolsVersion = "28.0.3"
        minSdkVersion = 16
        compileSdkVersion = 28
        targetSdkVersion = 28
        supportLibVersion = "28.0.0"
    }
    repositories {
        google()
        jcenter()
        maven {
            url 'https://maven.fabric.io/public'
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.1'
        classpath 'com.google.gms:google-services:4.2.0'
        classpath 'io.fabric.tools:gradle:1.25.4'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        mavenLocal()
        google()
        jcenter()
        maven { url "https://jitpack.io" }
        maven { url "https://maven.google.com" }
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url "$rootDir/../node_modules/react-native/android"
        }
    }
}

android/app/build.gradle:

apply plugin: "com.android.application"

import com.android.build.OutputFile

project.ext.react = [
    entryFile: "index.js"
]

apply from: "../../node_modules/react-native/react.gradle"

/**
 * Set this to true to create two separate APKs instead of one:
 *   - An APK that only works on ARM devices
 *   - An APK that only works on x86 devices
 * The advantage is the size of the APK is reduced by about 4MB.
 * Upload all the APKs to the Play Store and people will download
 * the correct one based on the CPU architecture of their device.
 */
def enableSeparateBuildPerCPUArchitecture = false

/**
 * Run Proguard to shrink the Java bytecode in release builds.
 */
def enableProguardInReleaseBuilds = false

android {
    compileSdkVersion rootProject.ext.compileSdkVersion

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    defaultConfig {
        applicationId "com.xxxxx"
        minSdkVersion rootProject.ext.minSdkVersion
        targetSdkVersion rootProject.ext.targetSdkVersion
        versionCode 1
        versionName "1.0"
        multiDexEnabled true

        ndk {
            abiFilters "armeabi-v7a", "x86"
        }
    }
    splits {
        abi {
            reset()
            enable enableSeparateBuildPerCPUArchitecture
            universalApk false  // If true, also generate a universal APK
            include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
        }
    }
    buildTypes {
        release {
            minifyEnabled enableProguardInReleaseBuilds
            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
        }
    }
    // applicationVariants are e.g. debug, release
    applicationVariants.all { variant ->
        variant.outputs.each { output ->
            // For each separate APK per architecture, set a unique version code as described here:
            // http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
            def versionCodes = ["armeabi-v7a":1, "x86":2, "arm64-v8a": 3, "x86_64": 4]
            def abi = output.getFilter(OutputFile.ABI)
            if (abi != null) {  // null for the universal-debug, universal-release variants
                output.versionCodeOverride =
                        versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
            }
        }
    }
}

dependencies {
    implementation project(':react-native-firebase')

    implementation "com.google.android.gms:play-services-base:16.0.1"
    implementation "com.google.firebase:firebase-core:16.0.6"
    implementation "com.google.firebase:firebase-ads:15.0.1"
    implementation "com.google.firebase:firebase-analytics:16.0.4"
    implementation('com.crashlytics.sdk.android:crashlytics:2.9.5@aar') {
        transitive = true
    }

    implementation fileTree(dir: "libs", include: ["*.jar"])
    implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
    implementation "com.facebook.react:react-native:+"  // From node_modules
}

// Run this once to be able to run the application with BUCK
// puts all compile dependencies into folder libs for BUCK to use
task copyDownloadableDepsToLibs(type: Copy) {
    from configurations.compile
    into 'libs'
}

apply plugin: 'com.google.gms.google-services'
apply plugin: "io.fabric"

android/settings.gradle:

rootProject.name = 'xxxx'
include ':react-native-firebase'
project(':react-native-firebase').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-firebase/android')

include ':app'

MainApplication.java:

package com.sccwallet;

import android.app.Application;

import com.facebook.react.ReactApplication;
import io.invertase.firebase.RNFirebasePackage;
import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
import com.facebook.react.shell.MainReactPackage;
import com.facebook.soloader.SoLoader;

import io.invertase.firebase.admob.RNFirebaseAdMobPackage;
import io.invertase.firebase.analytics.RNFirebaseAnalyticsPackage;
import io.invertase.firebase.fabric.crashlytics.RNFirebaseCrashlyticsPackage;

import java.util.Arrays;
import java.util.List;

public class MainApplication extends Application implements ReactApplication {

  private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) {
    @Override
    public boolean getUseDeveloperSupport() {
      return BuildConfig.DEBUG;
    }

    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
          new MainReactPackage(),
            new RNFirebasePackage(),
              new RNFirebaseAnalyticsPackage(),
              new RNFirebaseAdMobPackage(),
              new RNFirebaseCrashlyticsPackage()
      );
    }

    @Override
    protected String getJSMainModuleName() {
      return "index";
    }
  };

  @Override
  public ReactNativeHost getReactNativeHost() {
    return mReactNativeHost;
  }

  @Override
  public void onCreate() {
    super.onCreate();
    SoLoader.init(this, /* native exopackage */ false);
  }
}

AndroidManifest.xml:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  package="com.xxxx">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.VIBRATE"/>
    <uses-permission android:name="android.permission.CAMERA" />

    <application
      android:name=".MainApplication"
      android:label="@string/app_name"
      android:icon="@mipmap/ic_launcher"
      android:roundIcon="@mipmap/ic_launcher_round"
      android:allowBackup="false"
      tools:replace="android:allowBackup"
      tools:node="replace"
      android:theme="@style/AppTheme">

      <meta-data
            android:name="com.google.android.gms.ads.APPLICATION_ID"
            android:value="ca-app-pub-6622591474272902~1702065928"/>

      <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
        android:windowSoftInputMode="adjustResize">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
      </activity>
      <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
    </application>

</manifest>

---

Environment

• Platform that you're experiencing the issue on:
  
  
  
  • [ ] iOS iS WORK
  
  
  • [X] Android
  
  
  • [ ] iOS but have not tested behavior on Android
  
  
  • [ ] Android but have not tested behavior on iOS
  
  
  • [ ] Both
  
  
• If known, the version of the platform are you experiencing the issue on:
  
  
  
  • ADD_SOMETHING_HERE e.g. iOS 10 or Android API 28
  
  
• Operating System:
  
  
  
  • [x] MacOS, version: N/A
  
  
  • [ ] Windows, version: N/A
  
  
  • [ ] Other, please specify: N/A
  
  
• Build Tools:
  
  
  
  • ADD_SOMETHING_HERE e.g. Xcode 10, Android Studio 3.2
  
  
• React Native version:
  
  
  
  • ADD_SOMETHING_HERE
  
  
• React Native Firebase library version:
  
  
  
  • ADD_SOMETHING_HERE
  
  
• Firebase module(s) you're using that has the issue:
  
  
  
  • [x] N/A
  
  
  • [ ] Authentication
  
  
  • [ ] Analytics
  
  
  • [ ] Cloud Firestore
  
  
  • [ ] Cloud Messaging (FCM)
  
  
  • [ ] Crashlytics
  
  
  • [ ] Dynamic Links
  
  
  • [ ] Functions Callable
  
  
  • [ ] In App Messaging
  
  
  • [ ] Indexing
  
  
  • [ ] Invites
  
  
  • [ ] Instance ID
  
  
  • [ ] ML Kit
  
  
  • [ ] Notifications
  
  
  • [ ] Performance Monitoring
  
  
  • [ ] Realtime Database
  
  
  • [ ] Remote Config
  
  
  • [ ] Storage
  
  
• Are you using TypeScript?
  
  
  
  • [ ] No
  
  
  • [ ] Yes, version: N/A
  
  
• Are you using Expo, e.g. ExpoKit?
  
  
  
  • [x] No
  
  
  • [ ] Yes, I've _not_ ejected
  
  
  • [ ] Yes, but I have ejected to ExpoKit
  
  
  • [ ] Yes, but I have ejected to vanilla React Native
  
  
  • Expo version: N/A
  
  

---

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[tautvilas]

In my case the problem was resolved when I added auth module to gradle deps:
com.google.firebase:firebase-auth:16.2.0

https://firebase.google.com/docs/android/setup#available-libraries

It seems that adding the package is not enough, you also have to add all deps to gradle too. Somehow this information is missing in 'getting started' tutorials

[Cnilton]

@tautvilas worked for me, thanks!!

[luatvudinh]

+1
Accident this too. Fix it please.

[carlosabreu]

I had the same issue. I solved it by adding firebase-database:

dependencies {
   ...
    implementation "com.google.firebase:firebase-database:16.0.6"

}

[carlosabreu]

All my dependencies:

dependencies {
    implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
    implementation "com.facebook.react:react-native:+"  // From node_modules
    implementation fileTree(dir: "libs", include: ["*.jar"])
    implementation 'com.android.support:multidex:1.0.3'

    implementation project(':react-native-firebase')

    // Firebase dependencies
    implementation "com.google.android.gms:play-services-base:16.1.0"
    implementation "com.google.firebase:firebase-core:16.0.8"
    implementation "com.google.firebase:firebase-firestore:18.2.0"
    implementation "com.google.firebase:firebase-database:16.0.6"

}

[vandiepbui]

I had the same issue. I solved it by adding firebase-database:

dependencies {
   ...
    implementation "com.google.firebase:firebase-database:16.0.6"

}

Yeah ~ worked for me. thanks so much

[KhanhVoPiksal]

mine works

[ghasemikasra39]

same issue. adding auth not working. Any solution ?

[yosukapro]

Same issue! It still not work for me!!

[Giovani-Silva]

Same issue! Any solution ?

[franzwarning]

Same issue here.

[speedandfunction-anri]

having the same issue

[MuhammadWaseeem]

Same Issue, But I try to solve this Issue

[mikehardy]

Please don't just say "same issue", or +1, that's the equivalent of spam to all the people here.

I can't reproduce it. See here: https://github.com/mikehardy/rnfbdemo

There can't be a fix without a reproduction. If someone could post a clean github repo with a reproduction we could see what's wrong.

[EhsanSarshar]

follow react-native-firebase how to install doc and it will tell you all the steps to install it both on android and ios. it need to do some extra steps to install it

here is a link to documentation ==> https://rnfirebase.io/docs/v5.x.x/installation/android