Help no sound in my built?

I am working on a Space shooter game but when I make a built there are no sound. it Works when I play it in the editor.
how do I fix that ?

Every thing works except for the sound. Can some on explain where we need to go from here, change xcode change settings in unity what?

Found out my issue was the sound off/on switch on both of my iPads. They were in a right (muted) position even though I listen to music on both, I changed them to the left position and wall sound from my game. This could be your issue as well. I am embarrassed, but when we find a fix we need to report it no matter how stupid it feels. Any how that was my issue. Duh…