I can't see? did you solve the problem? I'm dealing with the same problem.
B4A 9.50
All library files and versions are correct. Even FirebaseAnalytics 1.12
<uses-sdk android: minSdkVersion = "14" android: targetSdkVersion = "28" />
<supports-screens android: largeScreens = "true"
android: normalscreens = "true"
android: smallscreens = "true"
android: anydensity = "true" />)
#if free
CreateResourceFromFile (Macro, FirebaseAnalytics.GooglePlayBase)
CreateResourceFromFile (Macro, FirebaseAuth.FirebaseAuth)
CreateResourceFromFile (Macro, FirebaseAnalytics.Firebase)
CreateResourceFromFile (Macro, FirebaseNotifications.FirebaseNotifications)
CreateResourceFromFile (Macro, FirebaseAnalytics.FirebaseAnalytics)
CreateResourceFromFile (Macro, FirebaseAdMob.FirebaseAds)
#end if
I get the error on the auth.Initialize ("auth") line.
java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process xxxxxxxxxxxx. Make sure to call FirebaseApp.initializeApp (Context) first.
I couldn't figure it out. This application worked through 23 versions. In fact, according to API28 compiled version is available in the market. My SDKs and Extra are fully installed. I don't understand what's changed.