GarageBand - annoying "airplay" pop up message

[Doc Heartless]

Hey all,
Got a novel question for you. I'm trying to work in Garageband and there's a message that will not stop popping up every thirty seconds:

GarageBand is scanning your system for audio devices, and had detected a device named "AirPlay".

No matter how many times I click "No" I don't want to use it, it will pop up again. Super distracting - any thoughts? Thanks.

 

[firedept]

If you use AirServer, AirParrot or similar software, this can cause the problem. Airplay on an ATV can cause this as well. Do you have any other Airplay device like an Apple TV. Maybe turn them off during your GarageBand sessions. That will stop it interfering with GarageBand but if anyone want's to watch a recording on TV they can't.
Apple is apparently aware of this

 

[shippouk]

Same problem here. Its only started to pop up since I updated Apple TV a few days ago.
Any solutions out there?