Parameters in function problem

programming flash
1

Hello i need build a class with couple of function this is class code :


package classes
{
    import flash.display.MovieClip;
    import flash.events.MouseEvent;
    import flash.text.TextField;
    import flash.text.TextFormat;
    import fl.controls.Button;

    import mx.controls.Button;
    import mx.controls.buttonBarClasses;
    
    public class Menu
    {
        public function Menu()
        {
        }

         public function mouseOn(o:Object,btn:Button):void{
             trace("on");
            
         }   
    }
    
    
}

My problem is that when i wanna make btn:Button like it`s in description of the class one of function parameters i all the time get error :

1046: Type was not found or was not a compile-time constant: Button.

I have googled it some hours and i dont find anything what can help me ;/ Its any wearder way to make it ? Same happen when i try make
var smthing:Button = new Button();
In function, i have imported all packages i need or bmy not ? :stuck_out_tongue: . Any ideas conceptions ? Plz help