Flash 11.3 class not found on 11.3 player
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I'm trying to include the following class in my Flash project:

import flash.display.JPEGXREncoderOptions;

According to the [official documentation][1], this is available as of Flash Player 11.3. I've set up FDT to use playerglobal.swc from 11.3 (and indeed, I can see the class inside the swc from FDT's browser inside my project). This also compiles fine. However, I get the following runtime error when I try to run the output .swf:

Error #1014: Class flash.display::JPEGXREncoderOptions could not be found.

I've verified that the Flash Player I'm running the .swf with is indeed 11.3 - to be more specific, 11.3.300.265. I'm running on Windows 7 64-bit, with the debug player.

Am I missing something here? Do I need to set up something else?


  [1]: http://help.adobe.com/en_US/FlashPlatform/beta/reference/actionscript/3/flash/display/JPEGXREncoderOptions.html