iPhone: AVAudioPlayer unsupported file type

Question

My app downloads an mp3 from our server and plays it back to the user. The file is 64 kbps (which is well within the acceptable range for iPhone if I understand correctly).

Answer 1

If your product name contains space, you will receive the error.
My project's product name was: Panorama 1453 TR. initWithContentsOfURL method cannot fetch file path. so it was not working. you can put a breakPoint to NSURL *fileURL = . After a step you can see fileURL what data has.
I changed to Panorama1453TR , it did work.