swift - Trouble with SKAudioNode -


in app when screen touched want play file "pewpew.mp3". not working. i've looked @ several of these posts none of working. code: 

let shootnoise = skaudionode(filenamed: "pewpew.mp3")         shootnoise.autoplaylooped = false         addchild(shootnoise)         shootnoise.run(skaction.play())         hero.run(playnoise)

that inside of 

override func(touchesended)

any ideas? feel i'm over-thinking this.


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