Odd undefined property via reference to static type compilation error

[Justin Mclean]

Hi,

Anyone have an idea why this:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"; 
                           xmlns:s="library://ns.adobe.com/flex/spark" 
                           xmlns:mx="library://ns.adobe.com/flex/mx">
        <fx:Script>
                <![CDATA[
                        protected var minimum:Number = this.minHeight;
                ]]>
        </fx:Script>
</s:Application>

Gives:
1119: Access of possibly undefined property minHeight through a reference with 
static type Class.

But if you remove "this." it compiles without error:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"; 
                           xmlns:s="library://ns.adobe.com/flex/spark" 
                           xmlns:mx="library://ns.adobe.com/flex/mx">
        <fx:Script>
                <![CDATA[
                        protected var minimum:Number = minHeight;
                ]]>
        </fx:Script>
</s:Application>

Thanks,
Justin