Firebase Error

Hello i have a compile error with firebase:

Code:

  B4A version: 6.00
Parsing code.    (0.07s)
Compiling code.    (0.22s)
Compiling layouts code.    (0.00s)
Organizing libraries.    (0.00s)
Generating R file.    Error
c:\android\android-sdk\extras\google\google_play_services\libproject\google-play-services_lib\res\values\base_attrs.xml:11: error: Attribute "buttonSize" has already been defined...  

Firebase Error

from B4X Community - Android, iOS, desktop, server and IoT programming tools http://ift.tt/28N44kv
via IFTTT