- Visual Studio Community 2017 for Mac Version 7.5.4 (build 3)
- Mono 5.10.1.57 (2017-12/ea8a24b1bbf) (64-bit)
- Xamarin.iOS Version: 11.12.0.4 (Visual Studio Community)
- Xamarin.Android Version: 8.3.3.2 (Visual Studio Community)
- Xamarin.Forms 3.1.0.637273
- Xamarin.Firebase.Firestore 60.1142.1
- Xamarin.Firebase.iOS.CloudFirestore 0.12.5.0
Must add reference Xamarin.Google.Guava in your Xamarin.Android project if you use Xamarin.Firebase.Firestore 60.1142.1 .
ref: xamarin/GooglePlayServicesComponents#130
You must build GoogleApisForiOSComponents and reference it.
MIT