How to find out where the project directory is located

Question

I can't get Flex 2.0 to see my class library. I have been
going to property and adding a source path --- it doesn't
work.

Answer 1

Thanks Tracy,
I don't mind being barked at --- it helps me learn --- I
assure I have no wish to rearrange the way these forums work ---
but I'm a little dense at the forward part of the learning curve.
Not being able to get Flex to work I thought I'd try to see
if plain old Flash would clarify the problem for me for Flex. I
really want to use Flex and not Flash. So, I get an extra clue as
to what I'm doing wrong. You'll see it if you can open the attached
(.fla, .as, a set of classes files named (ASCB3Library)) files. I''
suffer another bark or more if you'll help. Thanks either way.
1. .fla file has nothing in it except a reference the the .as
file named gsaras.as. Here it is:
package {
import flash.display.Sprite;
import ascb.drawing.Pen;
public class gsaras extends Sprite {
public function gsaras() {
gsaras.graphics.lineStyle(1,0,1);
gsaras.graphic.lineTo(300,200);
var pen:Pen = new Pen(gsaras.graphics);
pen.drawArc(100,100,50,80,20, true);
The classes file contains a package named drawing.Pen.as.
I wish I could attach them but don't know how.