I’ve tried to build with latest dev branch and use the JUCE non-native browser. and most folders were empty… I’ve scratched my head until I’ve figure it might be the Android runtime permissions.
So even if you add on your manifest:
android.permission.READ_EXTERNAL_STORAGE
android.permission.WRITE_EXTERNAL_STORAGE
It won’t work.
TL;DR
https://juce.com/doc/classRuntimePermissions
Would be mandatory for most modern audio apps.