Android Question signature does not match expected signature.

[Declan]

Running the following example
https://www.b4x.com/android/forum/t...s-firebase-cloud-messaging-fcm.67716/#content
I get the following error:

Error occurred on line: 0 (FirebaseMessaging)
java.lang.Exception: Sub subscribetotopics signature does not match expected signature.
public static anywheresoftware.b4a.pc.RemoteObject com.ecowatch.isprotector.firebasemessaging_subs_0._subscribetotopics() throws java.lang.Exception
class java.lang.String,

My code that relates to the error:

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

 

[Erel]

Is this the full error message?

Look for a call to this sub with CallSub or CallSubDelayed, that probably has another parameter.