Advertencia de .NET para Android XA4315
warning XA4315: Ignoring {file}. Manifest does not have the required 'package' attribute on the manifest element.
El especificado $(file)
no tiene un package
atributo en su manifest
elemento.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android">
</manifest>
Agregue el atributo que falta al manifiesto.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package='com.microsoft.hellolibrary'>
</manifest>