[FLEXJS] Creating new TextButton in RunTime

[Logibérica - Paulo Esgaio]

Dear (ex?)Flexers,

I'm having a problem while compiling a simple app that uses antipatterns.

Here's a partial sample:

<fx:Script>
<![CDATA[
import org.apache.flex.createjs.TextButton;
private var obj:TextButton = new TextButton();

(...)

]]>
</fx:Script>

Error when compiling with FlexJS (FalconJX Release )
When I try to compile into JS the following error occurs:

\bin\js-debug\org\apache\flex\createjs\core\UIBase.js:53: ERROR - variable 
createjs is undeclared
  this.element = new createjs.Container();

Removing both the lines it Works like a charm. Any ideas, anyone?

TIA,

Paulo Esgaio