cannot get nativescript-plugin-firebase demo-push app to work

问题

Can anyone help me install the nativescript-plugin-firebase Push-demo application. I could not manage to install and make it work. So please is there a guidance step by step for beginners? This is the demo link: https://github.com/EddyVerbruggen/nativescript-plugin-firebase/tree/master/demo-push

@Eddy Verbruggen: Your help will be appraciated

Regards

来源：https://stackoverflow.com/questions/52890502/cannot-get-nativescript-plugin-firebase-demo-push-app-to-work