[firebase_messaging] PluginRegistrantCallback is not set on Android

[creativecreatorormaybenot]

Fatal Exception: java.lang.RuntimeException
Unable to create service io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService: 
java.lang.RuntimeException: PluginRegistrantCallback is not set.

This is caused by:

Caused by java.lang.RuntimeException: PluginRegistrantCallback is not set.
       at io.flutter.plugins.firebasemessaging.
FlutterFirebaseMessagingService.executeDartCallbackInBackgroundIsolate(FlutterFirebaseMessagingService.java)
       at io.flutter.plugins.firebasemessaging.
FlutterFirebaseMessagingService.onCreate(FlutterFirebaseMessagingService.java)

This happens on Android when running a Flutter app built with firebase_messaging: 6.0.9 and Flutter 1.15.4-pre.199.

---

This also happens every time calling FirebaseMessaging.configure in the Flutter app when running on Android:

PlatformException(error, PluginRegistrantCallback is not set., null)
  StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7)
  MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:156:18)
<asynchronous suspension>
  MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:329:12)
  FirebaseMessaging.configure (package:firebase_messaging/firebase_messaging.dart:130:16)

[ClevercodeTech]

exact same issue. the error appears when using background notification.

``` `E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): Failed to handle method call E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): java.lang.RuntimeException: PluginRegistrantCallback is not set. E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService.startBackgroundIsolate(FlutterFirebaseMessagingService.java:157) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin.onMethodCall(FirebaseMessagingPlugin.java:176) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:231) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:93) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:642) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at android.os.MessageQueue.nativePollOnce(Native Method) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at android.os.MessageQueue.next(MessageQueue.java:326) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at android.os.Looper.loop(Looper.java:160) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at android.app.ActivityThread.main(ActivityThread.java:6669) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at java.lang.reflect.Method.invoke(Native Method) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) E/MethodChannel#plugins.flutter.io/firebase_messaging(12720): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

I/mattuvandi.use(12720): Background concurrent copying GC freed 18711(1011KB) AllocSpace objects, 12(304KB) LOS objects, 50% free, 2MB/4MB, paused 11.526ms total 155.904ms

E/flutter (12720): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: PlatformException(error, PluginRegistrantCallback is not set., null)
E/flutter (12720): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7)
E/flutter (12720): #1 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:321:33)
E/flutter (12720):
E/flutter (12720): #2 FirebaseMessaging.configure (package:firebase_messaging/firebase_messaging.dart:130:16)
E/flutter (12720): #3 firebaseNotification (package:Mattuvandi/app_screens/home/Home.dart:432:27)
E/flutter (12720): #4 _HomeState.build (package:Mattuvandi/app_screens/home/Home.dart:48:7)
E/flutter (12720): #5 StatefulElement.build (package:flutter/src/widgets/framework.dart:4334:27)
E/flutter (12720): #6 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4223:15)
E/flutter (12720): #7 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5)
E/flutter (12720): #8 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5)
E/flutter (12720): #9 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11)
E/flutter (12720): #10 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5)
E/flutter (12720): #11 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14)
E/flutter (12720): #12 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12)
E/flutter (12720): #13 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14)
E/flutter (12720): #14 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14)
E/flutter (12720): #15 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12)
E/flutter (12720): #16 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16)
E/flutter (12720): #17 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5)
E/flutter (12720): #18 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5)
E/flutter (12720): #19 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5)
E/flutter (12720): #20 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14)
E/flutter (12720): #21 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12)
E/flutter (12720): #22 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14)
E/flutter (12720): #23 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14)
E/flutter (12720): #24 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12)
E/flutter (12720): #25 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14)
E/flutter (12720): #26 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14)
E/flutter (12720): #27 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12)
E/flutter (12720): #28 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16)
E/flutter (12720): #29 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5)
E/flutter (12720): #30 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5)
E/flutter (12720): #31 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11)
E/flutter (12720): #32 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5)
E/flutter (12720): #33 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14)
E/flutter (12720): #34 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12)
E/flutter (12720): #35 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14)
E/flutter (12720): #36 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14)
E/flutter (12720): #37 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12)
E/flutter (12720): #38 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14)
E/flutter (12720): #39 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14)
E/flutter (12720): #40 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12)
E/flutter (12720): #41 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16)
E/flutter (12720): #42 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5)
E/flutter (12720): #43 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5)
E/flutter (12720): #44 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11)
E/flutter (12720): #45 Com`

</details>

[azabazay]

same issue, is there any solution yet?

[h0x539]

Application.java replace:

public class Application extends FlutterApplication implements PluginRegistrantCallback {
  @Override
  public void onCreate() {
    super.onCreate();
    FlutterFirebaseMessagingService.setPluginRegistrant(this);
  }

  @Override
  public void registerWith(PluginRegistry registry) {
    GeneratedPluginRegistrant.registerWith(registry);
  }
}

Application.java with:

import io.flutter.app.FlutterApplication;
import io.flutter.plugin.common.PluginRegistry;
import io.flutter.plugin.common.PluginRegistry.PluginRegistrantCallback;
import io.flutter.plugins.GeneratedPluginRegistrant;
import io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService;
import io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin;

public class Application extends FlutterApplication implements PluginRegistrantCallback {

    @Override
    @CallSuper
    public void onCreate() {
        super.onCreate();
        FlutterFirebaseMessagingService.setPluginRegistrant(this);
    }

    @Override
    public void registerWith(PluginRegistry pluginRegistry) {
        FirebaseMessagingPlugin.registerWith(pluginRegistry.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
    }
}

[ClevercodeTech]

I run in to error while using @callsuper. As per android document it is deprecated.
with your suggested code i get same error.

manifest.xml:

`

<!-- io.flutter.app.FlutterApplication is an android.app.Application that
     calls FlutterMain.startInitialization(this); in its onCreate method.
     In most cases you can leave this as-is, but you if you want to provide
     additional functionality it is fine to subclass or reimplement
     FlutterApplication and put your custom class here. -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />       
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

<application
    android:name="io.flutter.app.FlutterApplication"
    android:label="Mattuvandi"
    android:icon="@mipmap/ic_launcher">
 
     <meta-data android:name="com.google.android.geo.API_KEY"
           android:value="*************************************"/>               
    <activity
        android:name=".MainActivity"
        android:launchMode="singleTop"
        android:theme="@style/LaunchTheme"
        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>
          <intent-filter>
            <action android:name="FLUTTER_NOTIFICATION_CLICK" />
            <category android:name="android.intent.category.DEFAULT" />
          </intent-filter>
    </activity>    
     <activity android:name=".Application"
              android:launchMode="singleTop"
              android:theme="@android:style/Theme.Black.NoTitleBar"
              android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
              android:hardwareAccelerated="true"
              android:windowSoftInputMode="adjustResize">
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity>     
</application>   

`

Mainactivity.Java

import android.os.Bundle;
import io.flutter.app.FlutterActivity;
import io.flutter.plugins.GeneratedPluginRegistrant;

public class MainActivity extends FlutterActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    GeneratedPluginRegistrant.registerWith(this); //auto generated?
  }
}

Application.java

```` package com.mattuvandi.user; import android.os.Bundle; import io.flutter.app.FlutterApplication; import io.flutter.app.FlutterActivity; import io.flutter.plugin.common.PluginRegistry; import io.flutter.plugin.common.PluginRegistry.PluginRegistrantCallback; import io.flutter.plugins.GeneratedPluginRegistrant; import io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService; import io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin;

public class Application extends FlutterApplication implements PluginRegistrantCallback {
@OverRide
// @callsuper
public void onCreate() {
super.onCreate();
FlutterFirebaseMessagingService.setPluginRegistrant(this);
}

@OverRide
public void registerWith(PluginRegistry pluginRegistry) {
FirebaseMessagingPlugin.registerWith(pluginRegistry.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
}
}````

Error:

````E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): Failed to handle method call E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): java.lang.RuntimeException: PluginRegistrantCallback is not set. E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService.startBackgroundIsolate(FlutterFirebaseMessagingService.java:157) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin.onMethodCall(FirebaseMessagingPlugin.java:176) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:231) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:93) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:642) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at android.os.MessageQueue.nativePollOnce(Native Method) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at android.os.MessageQueue.next(MessageQueue.java:326) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at android.os.Looper.loop(Looper.java:160) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at android.app.ActivityThread.main(ActivityThread.java:6669) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at java.lang.reflect.Method.invoke(Native Method) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) E/MethodChannel#plugins.flutter.io/firebase_messaging(14771): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) I/flutter (14771): Login Status true I/mattuvandi.use(14771): Background concurrent copying GC freed 12428(1431KB) AllocSpace objects, 23(684KB) LOS objects, 49% free, 2024KB/3MB, paused 1.106ms total 237.579ms E/flutter (14771): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: PlatformException(error, PluginRegistrantCallback is not set., null) E/flutter (14771): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7) E/flutter (14771): #1 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:321:33) E/flutter (14771): E/flutter (14771): #2 FirebaseMessaging.configure (package:firebase_messaging/firebase_messaging.dart:130:16) E/flutter (14771): #3 firebaseNotification (package:Mattuvandi/app_screens/home/Home.dart:432:27) E/flutter (14771): #4 _HomeState.build (package:Mattuvandi/app_screens/home/Home.dart:48:7) E/flutter (14771): #5 StatefulElement.build (package:flutter/src/widgets/framework.dart:4334:27) E/flutter (14771): #6 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4223:15) E/flutter (14771): #7 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) E/flutter (14771): #8 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) E/flutter (14771): #9 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) E/flutter (14771): #10 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) E/flutter (14771): #11 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) E/flutter (14771): #12 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) E/flutter (14771): #13 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) E/flutter (14771): #14 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) E/flutter (14771): #15 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) E/flutter (14771): #16 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) E/flutter (14771): #17 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) E/flutter (14771): #18 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) E/flutter (14771): #19 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) E/flutter (14771): #20 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) E/flutter (14771): #21 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) E/flutter (14771): #22 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) E/flutter (14771): #23 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) E/flutter (14771): #24 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) E/flutter (14771): #25 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) E/flutter (14771): #26 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) E/flutter (14771): #27 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) E/flutter (14771): #28 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) E/flutter (14771): #29 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) E/flutter (14771): #30 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) E/flutter (14771): #31 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) E/flutter (14771): #32 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) E/flutter (14771): #33 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) E/flutter (14771): #34 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) E/flutter (14771): #35 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) E/flutter (14771): #36 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) E/flutter (14771): #37 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) E/flutter (14771): #38 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) E/flutter (14771): #39 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) E/flutter (14771): #40 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) E/flutter (14771): #41 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) E/flutter (14771): #42 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) E/flutter (14771): #43 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) E/flutter (14771): #44 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) ````

[creativecreatorormaybenot]

@ClevercodeTech @h0x539 Could you maybe wrap your code into a <details> </details> to make this thread more readable?

[ClevercodeTech]

@ClevercodeTech @h0x539 Could you maybe wrap your code into a <details> </details> to make this thread more readable?

thanks for the suggestion. Updated as per your suggestion.

[h0x539]

@ClevercodeTech

Try to make a standalone build of the android module.

Android Studio -> right click on android package -> Flutter -> Open Android module in Android Studio

Flutter Android module in Android Studio -> Terminal -> ./gradlew clean && ./gradlew build

[ClevercodeTech]

Resolved the issue. Flutter instruction was not clear or i didn't get what they were saying.
i changed the following line in the beginning of my manifest.xml:

android:name="io.flutter.app.FlutterApplication"

to

android:name=".Application"

<application
android:name="io.flutter.app.FlutterApplication"
android:name=".Application"
android:label="Mattuvandi"
android:icon="@mipmap/ic_launcher">

[kalibu]

I did it and the error is out, but it is not calling the onBackgroundMessage anymore.

[helenaford]

Closing this issue because it looks like it's resolved.

@kalibu if you are still experiencing issues calling the onBackgroundMessage with the latest version of Flutter and FlutterFire plugin, can you please provide your updated flutter doctor -v
and your flutter run --verbose/flutter build --verbose ?
Also, to better address the issue, would be helpful
if you could post a self contained app on github
or the steps to reproduce it.
Thank you

[creativecreatorormaybenot]

@helenaford

This has not been resolved at all.
Hint: there has not been an update to the plugin (on Android) since I opened this issue. I only replaced one deprecated method that had nothing to do with this, so basically there has not been an update since I opened the issue..