Cant change text field inside movie clip

I have a movie clip symbol that I converted from a dynamic text field with the instance name "text2". When I try to add it as a child and then try to access the text field, the compiler throws:

Error #1009: Cannot access a property or method of a null object reference.

var test = new Qwe(); //Qwe is the movie clip converted from dynamic text field
addChild(test);

test.text2.text ="535";  /instance name of the text field was text2.