AIR SDK Installation on a Mac

Does anybody know how to properly install the AIR SDK onto a Mac? I was told to just download the SDK .dmg and drag those files wherever I want – ie: Create a folder called AIRSDK in my ‘Applications’ folder and put the files there.

However, whenever I try to compile and package an AIR application from the terminal, it tells me “error 303: Icon icons/AIRApp_16.png is missing from package”

I’m not sure what the problem is.

Please advise.
Thx in advance to all.