Making dynamic text, load from notpad doc. Problem

Hello.
Im trying to make a few buttons and load a text from a notepad document.
This uis the guide i use.=

http://www.kirupa.com/developer/mx/multiple_dynamictext.htm

And its relly basic and simple coading, but in some way it doesnt work for me, i get this error message =

Warning Scene=Scene 2, layer=Start, frame=1:Line 2: The identifier ‘loadVars’ will not resolve to built-in object ‘LoadVars’ at runtime.
loadText = new loadVars();

What does it mean that loadVars will not resolve to built-in object ?

Thanx for your help.