after upgrade firebase_messaging 8.0.0-dev.15 build android not working anymore

[digarahayu]

Hello there,
anybody know how to fix my issue after upgrade firebase_message
i got error like this

Application.kt: (10, 27): Unresolved reference: firebasemessaging
Application.kt: (16, 5): Unresolved reference: FlutterFirebaseMessagingService
Application.kt: (19, 24): Unresolved reference: firebasemessaging

This is what my Application.kt looks like

package com.wa.wew
import android.os.Build;
import android.util.Log
import android.app.NotificationChannel;
import android.app.NotificationManager;
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

class Application : FlutterApplication(), PluginRegistrantCallback {
  override fun onCreate() {
    super.onCreate()
    this.registerChannel();
    FlutterFirebaseMessagingService.setPluginRegistrant(this);
  } 
  override fun registerWith(registry: PluginRegistry?) {
    io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin.registerWith(registry?.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
  }
  private fun registerChannel(){
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
      val name = "FCM Tes";
      val descriptionText = "This is channel notification tes";
      val importance = NotificationManager.IMPORTANCE_DEFAULT
      val mChannel = NotificationChannel("fcm_orangt_channel", name, importance)
      mChannel.description = descriptionText
      val notificationManager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
      notificationManager.createNotificationChannel(mChannel)
    }
  }
}

when i use old version from firebase_messaging no issue

[esdan7]

Maybe this would help:
Application.kt: Unresolved reference: firebasemessaging