Someone else posted this exact question.
I'm thinking, make sure that you:
-Restart the computer
-Open the sound editor
-Pick a sound or tune and click the use a soun/music buttons.
-The actions are: play sound or play music
-When testing the game, make sure your volume is on.
Those are the only suggestions i can give EXCEPT:
I tried a sound once and it appeared empty with no sound in, if that happens then it wont work and you must pick a different sound.
Good luck with your project
~Jindo
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