Can't set Build Action to GoogleServiceJson

The GoogleServicesJson build type comes from the Xamarin.GooglePlayServices.Basement.targets.

If your project does not have Xamarin.GooglePlayServices.Basement installed via one of its dependents, usually Xamarin.GooglePlayServices.Gcm or Xamarin.Firebase.Messaging if we are talking about messaging, then you will not have that build action available.

After adding a package that installs Basement, or manually adding it yourself, your .csproj will contain an import for Xamarin.GooglePlayServices.Basement.targets and GoogleServicesJson will be available as a build type:

.csproj import example:

  <Import Project="..\packages\Xamarin.GooglePlayServices.Basement.42.1001.0\build\MonoAndroid70\Xamarin.GooglePlayServices.Basement.targets" Condition="Exists('..\packages\Xamarin.GooglePlayServices.Basement.42.1001.0\build\MonoAndroid70\Xamarin.GooglePlayServices.Basement.targets')" />

Even after installing "Xamarin.GooglePlayServices.Basement" GoogleServiceJson option was not showing. Surprisingly but when i quit Xamarin studio and opened it again it starts displaying.

1-Download first these Packages:

Xamarin.Firebase.Common

Xamarin.Firebase.Config

Xamarin.Firebase.Iid

Xamarin.GooglePlayServices.Base

Xamarin.GooglePlayServices.Basement

Xamarin.GooglePlayServices.Tasks

2-then restart and rebuild 3-from google-services.json --> Properties --> build Action: GoogleServicesJson