Need help with this shopping cart code please

programming flash
1

when i try and view the output of my code in the fla file i get an error does anyone know why

This my as file

class com.ahfx.Product {

//Instance Variables
private var price:Number;
private var desc:String;
private var quantity:Number;

function Product() {

}

function getPrice():Number {
return price;
}

function setPrice(myVar:Number):Void {
price = myVar;
}

function getQuantity():Number {
return quantity;
}

function setQuantity(quantity:Number):Void {
this.quantity = quantity;
}

function getDesc():String {
return desc;
}

function setDesc(myVar:String):Void {
desc = myVar;
}

function getTotal():Number {
return price*quantity;
}

}

This is my fla file code
which is on a keyframe

import com.ahfx.Product;
var myProduct = new Product();
myProduct.setQuantity(3);
myProduct.setPrice(2.99);
myProduct.setDesc(“Teddy Bear”);

trace(myProduct.getDesc());
trace(myProduct.getPrice());
trace(myProduct.getQuantity());
trace(myProduct.getTotal());