Only demo mp3 files can be played in the example app

[LeeHunter]

In the example app, I can only play the sample files and no others. So far I've tried to load four MP3 files (i.e. by changing the yaml file and main.dart) and I get the "File not playable" message each time I tried to load the file.

This happens even if I leave the example app code the same but simply rename my substitute files to dubstep.mp3.

[LeeHunter]

I did a little more experimenting and reinstalled the example and I was able to successfully substitute my MP3 for the dubstep.mp3, so I must have changed something in the code in my first attempt. Marking this as closed.