- Download the latest version of your AIR SDK from the adobe website: http://www.adobe.com/devnet/air/air-sdk-download.html. The file will be called 'AIRSDK_Compiler.zip'.
- Navigate to your installed version of the AIR SDK on your hard drive in the 'com folder. Navigate in Windows to Local Disk (C:) > Program Files > Adobe > Adobe Flash Builderr 4.7 (64 Bit) > eclipse > plugins > com.adobe.flash.compiler_4.7.0.... > AIRSDK
- Copy the folder AIRSDK to your desktop as a temporary backup called AIRSDK-backup.
- Delete all the files in the folder AIRSDK and replace it with all the files in the folder 'AIRSDK_Compiler.zip'.
- Restart Flash Builder