Firebase initialize error

Android
1

Hello.
why am i getting recently this error? I used push notification in the app
“Default FirebaseApp is not initialized in this process Make sure to call FirebaseApp.initializeApp(Context) first.”

2

Have you followed steps that are shown in the doc https://backendless.com/docs/android/push_push_notification_setup_androi.html

3

I did according to the doc i get error:
Default FirebaseApp is not initialized in this process com.forodja.app. Make sure to call FirebaseApp.initializeApp(Context) first.

this code is Application class:

class RxApp: Application() {
companion object {
lateinit var INSTANCE: RxApp

     fun applicationContext(): Context {
        return INSTANCE.applicationContext
    }
}

override fun onCreate() {
    super.onCreate()
    INSTANCE = this
    val context: Context = applicationContext()
    Timber.plant(Timber.DebugTree())
    FirebaseApp.initializeApp(this)
    Backendless.setUrl(Const.BACKENDLESS_SERVER_URL)
    Backendless.initApp(context,Const.BACKENDLESS_APPLICATION_ID, Const.BACKENDLESS_API_KEY)



}

override fun attachBaseContext(base: Context?) {
    super.attachBaseContext(base)
    MultiDex.install(this)
}

}

and this code is manifest.xml:

<?xml version="1.0" encoding="utf-8"?> 
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS"/>
<uses-permission android:name="android.permission.READ_CONTACTS" />


<application
        android:name="com.forodja.app.diff.RxApp"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:hardwareAccelerated="true"
        android:label="@string/app_name"
        android:networkSecurityConfig="@xml/network_security_config"
        android:supportsRtl="true"
        android:theme="@style/AppTheme"
        android:usesCleartextTraffic="true"
        tools:ignore="GoogleAppIndexingWarning">


    <activity android:name="com.forodja.app.ui.SplashRegisterActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>

            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity>
    <activity
            android:name="com.forodja.app.ui.MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">

    </activity>


    <receiver android:name="com.forodja.app.diff.SmsOtpReceiver" android:exported="true">
        <intent-filter>
            <action android:name="com.google.android.gms.auth.api.phone.SMS_RETRIEVED"/>
        </intent-filter>
    </receiver>

    <service android:name="com.backendless.push.BackendlessFCMService" >
        <intent-filter>
            <action android:name="com.google.firebase.MESSAGING_EVENT" />
        </intent-filter>
    </service>

</application>

and this library in my buld.gradle:

        implementation 'com.google.firebase:firebase-core:16.0.5'
        implementation    'com.google.firebase:firebase-messaging:17.3.4'
        implementation  "com.backendless:backendless:5.3.0"
        implementation('io.socket:socket.io-client:1.0.0') {
            // excluding org.json which is provided by Android
            exclude group: 'org.json', module: 'json'
        }
4

Hi @saeed_noshadi

Did you follow the link in the docs for setting up FCM in your app?
Did you go through the steps 3 and 4 (build.gradle configuration to enable google services)? Seems that this is the actual cause of the problem.
BTW: if everything is configured correctly - there is no necessity in calling FirebaseApp.initializeApp(Context) anywhere in your code

Regards,
Anton

5

i solve it:
i downgrade google-service version in build.gardle(project).
that version was

    classpath 'com.google.gms:google-services:4.3.0'

but for solved this i downgrade to

    classpath 'com.google.gms:google-services:4.2.0'  // Google Services plugin
6

I was not able to reproduce the issue with

classpath 'com.google.gms:google-services:4.3.0'

but I have the issue if I do not add this line.
I have the following version of sdk:

minSdkVersion 27
targetSdkVersion 28

What version do you have?