"UnityEngine.AsyncOperation" is required to access not static member "progress"

Hi, I try make a load progress bar, but it does not work

var Scene : String;
var progres : float;

function Start () {

	var op : AsyncOperation = Application.LoadLevelAsync(Scene);
	op.allowSceneActivation = false;
	progres = AsyncOperation.progress;
	
}

It gives an error “BCE0020: An instance of type “UnityEngine.AsyncOperation” is required to access not static member “progress””

What I do wrong ?

In the last line you need to do little change, as “progress” which you are accessing from AsyncOperation is not a static member, so you have to access it from object which you created.
Like this

progress = op.progress;

ok I get solution,

var Scene : String;
var progres : float;
var op : AsyncOperation;

function Start (){
	op =  Application.LoadLevelAsync(Scene);
}

function Update () {
	
	progres = op.progress;
}