firebase_messaging: ^4.0.0+4 is not working

Question

ERROR:-

Java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.google.firebase.iid.FirebaseInstanceId.getToken()' on a null object reference

Main build.gradle

dependencies { classpath 'com.android.tools.build:gradle:3.3.1' classpath 'com.google.gms:google-services:4.0.1' }

App level build.gradle

dependencies { 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' implementation 'com.google.firebase:firebase-core:16.0.1' } apply plugin: 'com.google.gms.google-services'

Adroid.manifest.xml

<activity android:name=".MainActivity" android:launchMode="singleTop" android:theme="@style/LaunchTheme" android:largeHeap="true" android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode" android:hardwareAccelerated="true" android:windowSoftInputMode="adjustResize">
    <!-- This keeps the window background of the activity showing
    until Flutter renders its first frame. It can be removed if
    there is no splash screen (such as the default splash screen
    defined in @style/LaunchTheme). -->
    <meta-data android:name="io.flutter.app.android.SplashScreenUntilFirstFrame" android:value="true" />

    <intent-filter>
        <action android:name="android.intent.action.MAIN"/>
        <category android:name="android.intent.category.LAUNCHER"/>
    </intent-filter>

</activity>

please check this link: stackoverflow.com/questions/53692518/… and try to add that service in your manifest file — android
Are you sure your problem is coming from dependencies ? Can you show your code where you call getToken method ? — Thomas Nicole

paras shah paras shah · Accepted Answer · 2019-04-30T05:18:59

The main issue which i have found the version required of google services for location plugin and FCM plugins are different.

at the app level build.gradle file at the most bottom

 dependencies {
        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'
        implementation 'com.google.firebase:firebase-core:16.0.1' } 
apply plugin: 'com.google.gms.google-services' com.google.gms.googleservices.GoogleServicesPlugin.config.disableVersionCheck
    = true

firebase_messaging: ^4.0.0+4 is not working

1 Answers