title: Flash builder, embed json compile error
body: <p>I am using flash builder 4.7.
  I tried to embed a json file while I got an error says:"../strings.json is of an unknown file 
   type which can't be embedded".</p>
  
  <p>Here is my code.
  [Embed(source="../media/data/strings.json"), mimeType="application/octet-stream"]
  public static const JsonData:Class;</p>
  
  <p>I have no idea how to fix it.</p>
  
  <p>I am using AIR SDK 3.4</p>
  
  <p>I want to use embedded method since it's always annoying to access local resource (the global flash setting).</p>