ActionScript: code for finding mac address doesn't work

Question

I have the following code in Actions of a keyframe in Adobe Flash Professional CS6:

var networkInterface : Object =  NetworkInfo.networkInfo.findInterfaces();
var networkInfo  : Object = networkInterface[0];
var physicalAddress : String = networkInfo.hardwareAddress.toString();

When I hit Ctrl+Enter to run the movie, I get the following compiler error:

Scene 1, Layer 'Layer 1', Frame 2, Line 1 1120: Access of undefined property NetworkInfo.

What do I do wrong?

Answer 1

you must add:

import flash.net.NetworkInfo;

and in publish settings you must chose Adobe AIR rather than flash player