Android Question notifivation still can not run

[Hamied Abou Hulaikah]

when i run my app it gives the following error

firebasemessaging_service_create (java line: 156)
java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.noti. Make sure to call FirebaseApp.initializeApp(Context) first.
at com.google.firebase.FirebaseApp.getInstance(Unknown Source)
at com.google.firebase.iid.FirebaseInstanceId.getInstance(Unknown Source)
at com.google.firebase.messaging.FirebaseMessaging.getInstance(Unknown Source)
at anywheresoftware.b4a.objects.FirebaseNotificationsService$FirebaseMessageWrapper.Initialize(FirebaseNotificationsService.java:94)
at com.noti.firebasemessaging._service_create(firebasemessaging.java:156)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:153)
at com.noti.firebasemessaging$1.run(firebasemessaging.java:75)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5422)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:914)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:707)

the code that i'm using the following code
STARTER SERVICE:

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.

End Sub

Sub Service_Create
    'This is the program entry point.
    'This is a good place to load resources that are not specific to a single activity.
   CallSubDelayed(FirebaseMessaging, "SubscribeToTopics")

End Sub

Sub Service_Start (StartingIntent As Intent)

End Sub

Sub Service_TaskRemoved
    'This event will be raised when the user removes the app from the recent apps list.
End Sub

'Return true to allow the OS default exceptions handler to handle the uncaught exception.
Sub Application_Error (Error As Exception, StackTrace As String) As Boolean
    Return True
End Sub

Sub Service_Destroy

End Sub

----------------------------
FirebaseMessaging SERVICE

#Region  Service Attributes
    #StartAtBoot: False
   
#End Region

Sub Process_Globals
   Private fm As FirebaseMessaging
End Sub

Sub Service_Create
   fm.Initialize("fm")
End Sub

Public Sub SubscribeToTopics
   fm.SubscribeToTopic("general") 'you can subscribe to more topics
End Sub

Sub Service_Start (StartingIntent As Intent)
   If StartingIntent.IsInitialized And fm.HandleIntent(StartingIntent) Then Return
End Sub

Sub fm_MessageArrived (Message As RemoteMessage)
   Log("Message arrived")
   Log($"Message data: ${Message.GetData}"$)
   Dim n As Notification
   n.Initialize
   n.Icon = "icon"
   n.SetInfo(Message.GetData.Get("title"), Message.GetData.Get("body"), Main)
   n.Notify(1)
End Sub

Sub Service_Destroy

End Sub

ANY IDEAS I WILL REALLY BE GRATEFUL

 

[Erel]

Have you added the required manifest code: https://www.b4x.com/android/forum/t...-messages-firebase-cloud-messaging-fcm.67716/ ?