I'm currently making a little game, and I am having an issue with sound. I've tried converting the file "pew.mp3" to pew.aif and pew.caf without much luck. I have dragged it into the "support" section of the game (the same way i've add hundreds of images) and the sound effect does not work. Code: [self runAction:[SKAction playSoundFileNamed:@"pew.aif" waitForCompletion:NO]]; is what I am using. When I use the .aif or .caf the error i get is "'NSInvalidArgumentException', reason: 'Resource pew.aif cannot be found in the main bundle'" I guess my question is do you have to use .caf or .aif? Or can you just use .mp3? Any ideas?