There are some techniques that you can use to successfully embed fonts into your Flex applications.

In many cases, you can resolve the error by changing the font manager. This is set in the configuration file; for example:

<fonts>
    <managers>
        <manager-class>flash.fonts.JREFontManager</manager-class>
        <manager-class>flash.fonts.AFEFontManager</manager-class>
        <manager-class>flash.fonts.BatikFontManager</manager-class>
    </managers>
</fonts>

You can try changing the order of font managers, as the following example shows:

<fonts>
    <managers>
        <manager-class>flash.fonts.AFEFontManager</manager-class>
        <manager-class>flash.fonts.BatikFontManager</manager-class>
        <manager-class>flash.fonts.JREFontManager</manager-class>
    </managers>
</fonts>