To fix a recently problem with "com.google.android.gms.license" the recommended solution is to edit platforms/android/project.properties
to specific the version of the libraries
old:
cordova.system.library.1=com.google.android.gms:play-services-auth:+
new:
cordova.system.library.1=com.google.android.gms:play-services-auth:11+
However the Ionic scaffolder deliberately out platforms/
into the .gitignore file so these changes will not be committed and shared to other dev. How/where should I make this change so that it persists?