unable to resolve ... for transcoding

问题：build flex 时报以下错误：

Error: unable to resolve 'assets/images/videochat_32x32.png' for transcoding

解决方法：

将 assets/images/videochat_32x32.png 修改为/assets/images/videochat_32x32.png

这样就从根路径开始搜索

错误示例：

[Embed(source="assets/images/videochat_32x32.png")]public static const VIDEO_CHAT_INVITATION:Class;

正确示例：

[Embed(source="/assets/images/videochat_32x32.png")]public static const VIDEO_CHAT_INVITATION:Class;