java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process

Question

I created a new project and added firebase via android studio tool of firebase. Did everything as instructed but I am getting this error during lunching the app.

Process: com.chitchat, PID: 20084
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.chitchat/com.chitchat.MainActivity}: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.chitchat. Make sure to call FirebaseApp.initializeApp(Context) first.
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2951)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3086)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1816)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:193)
    at android.app.ActivityThread.main(ActivityThread.java:6718)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:495)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
 Caused by: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.chitchat. Make sure to call FirebaseApp.initializeApp(Context) first.
    at com.google.firebase.FirebaseApp.getInstance(com.google.firebase:firebase-common@@16.0.1:219)
    at com.google.firebase.auth.FirebaseAuth.getInstance(Unknown Source:1)
    at com.chitchat.MainActivity.onCreate(MainActivity.java:22)
    at android.app.Activity.performCreate(Activity.java:7144)
    at android.app.Activity.performCreate(Activity.java:7135)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1272)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2931)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3086) 
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1816) 
    at android.os.Handler.dispatchMessage(Handler.java:106) 
    at android.os.Looper.loop(Looper.java:193) 
    at android.app.ActivityThread.main(ActivityThread.java:6718) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:495) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

MainActivity.java is

public class MainActivity extends AppCompatActivity {

private FirebaseAuth mAuth;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


    FirebaseApp.initializeApp(MainActivity.this);
    mAuth = FirebaseAuth.getInstance();
}

@Override
public void onStart() {
    super.onStart();
    // Check if user is signed in (non-null) and update UI accordingly.
    FirebaseUser currentUser = mAuth.getCurrentUser();
    //updateUI(currentUser);

    if(currentUser == null){
        Intent startAct = new Intent(MainActivity.this, Start_Activity.class);
        startActivity(startAct);
        finish();
    }
}
}

and gradle.build is

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.chitchat"
        minSdkVersion 23
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:design:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.google.firebase:firebase-auth:16.0.3'
    implementation 'com.google.firebase:firebase-core:16.0.3'
    //implementation 'com.google.android.gms:play-services-base'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'


}

Project-level gradle.build

    buildscript {
    repositories {
        google()
        jcenter()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.0'
        classpath 'com.google.gms:google-services:4.1.0'

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

allprojects {
    repositories {
        google()
        jcenter()

    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

Couldn't find anything on web! Have added firebaseApp.initializeApp(this) which was not present in any instructions but still the same error on emulator and on device.

is it possible that i have misconfig firebase which is causing this error!? — Ajay Choudhary
– Ajay Choudhary, Commented Jan 23, 2019 at 13:13

Stephen · Accepted Answer · 2021-01-30 16:55:16Z

6

I had this issue too.I saw many people were having the issue in recent weeks.There is issue with

        classpath 'com.android.tools.build:gradle:3.3.0'

change it to

        classpath 'com.android.tools.build:gradle:3.2.0'

as mentioned here!

because AGP is having some issues according to this discussion here! I think this will solve your issue.

EDIT: As of 30th jan 2021, just change to latest version of all firebase class dependencies and it should work: classpath 'com.google.gms:google-services:4.3.4'

edited Jan 30, 2021 at 16:55

Stephen

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answered Feb 13, 2019 at 18:43

Vishal

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1 Comment

FractalBob Over a year ago

I had updated google-services to 4.3.9 and experienced the problem. Downgrading to 4.3.4 got around the issue.

Saurabh Thorat · Accepted Answer · 2019-01-23 10:10:16Z

2

Add this to bottom of your build.gradle:

apply plugin: 'com.google.gms.google-services'

answered Jan 23, 2019 at 10:10

Saurabh Thorat

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4 Comments

Saurabh Thorat Over a year ago

Post your project-level build.gradle

Saurabh Thorat Over a year ago

@AjayChoudhary Try this: FirebaseApp.initializeApp(getApplicationContext())

Ajay Choudhary Over a year ago

tried this FirebaseApp.initializeApp(getApplicationContext()) : no luck!

Ajay Choudhary Over a year ago

Updated project-level build.gradle

Firoz Memon · Accepted Answer · 2019-01-24 05:40:48Z

2

Add following code in your Application class instead of Activity, in order to initialize Firebase into entire application, not just one Activity

@Override
public void onCreate() {
    super.onCreate();
    FirebaseApp.initializeApp(this);
}

Also, you need to move your apply plugin code from top to bottom Referencing: Add Firebase SDK

// ADD THIS AT THE BOTTOM
apply plugin: 'com.google.gms.google-services'

It requires that the apply plugin: 'com.google.gms.google-services' line be at the bottom of your app/build.gradle file so that no dependency collisions are introduced. You can see the result of this step by running ./gradlew :app:dependencies. Reference

Also, try syncing all firebase and gms:google-services dependencies to the latest version.

edited Jan 24, 2019 at 5:40

answered Jan 23, 2019 at 10:57

Firoz Memon

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2 Comments

Ajay Choudhary Over a year ago

I created a new java class, extends Application. Created entry in manifest file. Used your code in it. Still getting the same error! Please let me know if i misunderstood anything!

lasec0203 Over a year ago

For those using kotlin DSL see this answer

Tejas Pandya · Accepted Answer · 2019-01-23 10:15:28Z

1

First thing you need to add com.google.gms:google-services:x.x.x at root level build.gradle. Like this

buildscript {
repositories {
    jcenter()
}
dependencies {
    classpath 'com.android.tools.build:gradle:2.3.1'
    classpath 'com.google.gms:google-services:3.0.0'

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

then add google plugin at the bottom of your build.gradle(app).

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:design:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.google.firebase:firebase-auth:16.0.3'
    implementation 'com.google.firebase:firebase-core:16.0.3'
    //implementation 'com.google.android.gms:play-services-base'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'


}
apply plugin: 'com.google.gms.google-services'

answered Jan 23, 2019 at 10:15

Tejas Pandya

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1 Comment

Ajay Choudhary Over a year ago

'com.google.gms:google-services:4.1.0' is already present. I added 'apply plugin' but this didn't help. Same error!

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