Bug? Crashlytics Compile Error (Maven artifact non trovato)


Licensed User
I'm tring to add Crashlytics features to my application
I've followed tutorial https://www.b4x.com/android/forum/threads/crashlytics-crash-reports.87510/
but i'm unable to compile anymore it seems to be missing some sdk installation?

I've installed as required all
Raccomended, crashlytics, fabric, and playservices

I'm using b4a 8.30
JAVAC: Java\jdk1.8.0_191\bin\javac.exe
JAR: C:\Android\android-sdk\platforms\android-28\android.jar

Error: Maven artifact non trovato: com.crashlytics.sdk.android/crashlytics

It seem to be a problem with my pc/installation because i'm unable to compile application from my collegue (that works fine on his pc)

Any suggestion, idea?
Thanks in advance
Tommaso Honoré