I'm trying to create an app that listens to notifications sent from a Google Cloud Messaging service. This app is being developed with Xamarin.Android and with the help of PushSharp (Redth/PushSharp · GitHub). I've sucessfuly ran this app in many devices but so far I've been unable to do so in the Motorola ET1. Everytime I run the app an error occurs with the following message: "Device does not have package com.google.android.gsf".
Can this package be installed separately on the device? Or is there no possibility of running applications on this device that depend on that package?