Michael

I found the problem. I used DeviceFileSource() to load the asset. That works when app is started from Android Studio. However, the proper way to load assets is AssetSource(). `AudioPlayer().play(AssetSource(asset);`

Thanks for your answer. I tried the function `Parser().parse().createWidget()`. Surprisingly, it does not throw an error if I use an invalid string like `r'\e'`. That's the code I used: ```...