I do not know when it became necessary, but since I publish it (in May 2017), it is necessary. I placed mine in the same directory as my Android .csproj file. Then I added it to the project and made sure that Xamarin.GooglePlayServices.Base.targets is in my .csproj . I read that recovery will be enough to create the correct build action, but creating and restarting XS is what I did for me. The end result of my .csproj was this:
<ItemGroup> <GoogleServicesJson Include="google-services.json" /> </ItemGroup>
snotyak
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