Hrm unfortunately Phonegap Build doesn't expose project-level properties, so at the moment this would be un-configurable on the Android builds on PGB.
Alright, thank you very much for your reply! But configuring of such project-level properties could be possible if I would build my app locally with Apache Cordova (via NPM), right?
Yup, local cordova/phonegap simply creates an android project, so you could then go into the project folder and edit this.
Unfortunately, this has been a long standing problem with Android's aapt that they've never properly addressed:
As you've mentioned the best way to fix it is setting "aapt.ignore.assets" in project.properties on a locally built app.
Alright, thanks to both of you! Then I will build my app locally and set the "aapt.ignore.assets" inside the Android project.