so, I would like to add some resource files to support OneSignal notification icons on Android

https://documentation.onesignal.com/docs/customize-notification-icons#section-3-name-icons-appropriately

I put the icon files in the tree view under res/android/drawable-<size>/

I added this to my android platform sections

  <platform name="android">
    <resource-file src="/res/android/drawable-mdpi/ic_stat_onesignal_default.png" target="res/drawable-mdpi/ic_stat_onesignal_default.png" />

I get this error when building

Build Error: Error: Sandbox Exec Error: [ Error: Source path does not exist: /res/android/drawable-mdpi/ic_stat_onesignal_default.png ]

So, am i doing this completely wrong?

Thanks