Can I use AIR4.0 in FlashBuilder 4.6?

I've been developing on FlashBuilder4.6 (AIRSDK3.5) now.

Should be changed to 3.5 to 4.0 the AIRSDK me.

However, I have failed in the way until now. (Copy AIRSDK in FLEXSDK)

(Compile I get an error when you create a class of skin)

The procedure, how they are used in FlashBuilder4.7. Wrote.

http://helpx.adobe.com/en/flash-player/release-note/fp_12_air_4_releas e_notes.html

Of "Authoring Guidelines"

AIR4.0 Would not I use in FlashBuilder4.6?

Please let me know if you find some way to avoid.