Package address

i’m trying to start organizing projects
i have this folder structure:
working>flash>as3Study>VectorModelStudy12511>src

my document is in VectorModelStudy12511
i have class paths to VectorModelStudy12511 and src

the top of my document looks like:

package VectorModelStudy12511
{
	
	
	public class VectorModelStudy12511Document extends Sprite
	{
		private var _model:LanderModelx;
		private var _view:LanderUIView;
		private var _controller:LanderUIController;
		//private var _view:LanderView;
                               etc.......

and i’m getting this error:

5001: The name of package ‘VectorModelStudy12511’ does not reflect the location of this file. Please change the package definition’s name inside this file, or move the file. C:\Users\rob\Desktop\Projects\Working\Flash\AS3Study\VectorModelStudy12511\VectorModelStudy12511Document.as

what am i doing wrong???