Flashdevelop and AIR 3

Here is full list of tricks that should be done to run AIR3.0 project on Flashdevelop's 4.0 beta version:

1. Download latest Flex SDK and AirSDK, and extract it into some new folder (in same order: Flex then Air)
2. Add SDK to FlashDevelop (4.0 beta), Tools -> Programm Settings -> AS3Context -> "Installed Flex SDKs" -> Double click on the button with three dots "..." next to the value of this row, choose there your SDK
3. Create new Air 3 project. In Project properties, compiler options, put "-swf-version=13" into "Additional Compiler Options" under "Compiler options" tab
4. In Project settings, choose 3.0 in the Platform section of Output tab
5. edit application.xml:
http://ns.adobe.com/air/application/2.7">
replace with
http://ns.adobe.com/air/application/3.0">
6. empty "bin" folder of the project.