Added music through an actor, and closed Greenfoot.. now I get an instant error when I try to open it and the project doesn't open. Here's the error.
Caused by: javax.sound.sampled.UnsupportedAudioFileException: could not get audio input stream from input URL
at javax.sound.sampled.AudioSystem.getAudioInputStream(AudioSystem.java:1153)
at greenfoot.sound.JavaAudioInputStream.open(JavaAudioInputStream.java:70)
at greenfoot.sound.JavaAudioInputStream.<init>(JavaAudioInputStream.java:51)
at greenfoot.sound.SoundFactory.createSound(SoundFactory.java:108)
... 21 more
