Last error on this sound, if any

Property definitions

app $ PlayableAudio :: error
	# Last error on this sound, if any
	fun error: nullable Error do return null
lib/app/audio.nit:40,2--41,41

ios :: audio $ PlayableAudio :: error
	redef var error = null
lib/ios/audio.nit:27,2--23

linux :: audio $ PlayableAudio :: error
	redef var error = null
lib/linux/audio.nit:25,2--23

android :: audio $ PlayableAudio :: error
	redef var error = null
lib/android/audio.nit:518,2--23