Problem in loading Scene from Asset Bundle...

Hi All,

I am trying to load a scene from an AssetBundle(unity web player)the bundle is also cached.

When i run it for the first time everything runs absolutely perfect and the new scene is loaded, but when i quit the game once and run the build again it gives the error

the level (level name) could not be loaded as it has not been added to the build settings.

Here is the code

Code to Build Asset Bundle

 //Creating Asset Bundles For web Player
 @MenuItem ("Assets/Build AssetBundle Factory Area %u")
 static function CreateSceneBundle1(){
     
     // list of the levels to be streamed 
     var levels : String[] = ["Assets/1-Scenes/AbandonedDay.unity",
                                 "Assets/1-Scenes/AbandonedSunset.unity",
                                  "Assets/1-Scenes/AbandonedNight.unity"];
 
     var path = EditorUtility.SaveFilePanel ("Save Resource", "", "factoryarea", "unity3d");
     
     if (path.Length != 0)
     {
         BuildPipeline.BuildStreamedSceneAssetBundle( levels,path, BuildTarget.WebPlayer);
     }
 }

code to load level from assetbundle

 void Update()
 {
         if(Input.GetButtonDown("Jump"))
         {
             if(CheckBundleCacheStatus(url))
             {
                     Debug.Log("Level already Cached");
                 Application.LoadLevel("AbandonedDay");
             }
             else
             {
                 StartCoroutine(LoadCurrentLevel(url));
             }
         }
     }



 bool CheckBundleCacheStatus(string url)
 {
     if(Caching.IsVersionCached(url,1))
         return true;
     else
             return false;
 }


 IEnumerator LoadCurrentLevel(string url)
 {
     bundleWWW = WWW.LoadFromCacheOrDownload(url,1);
     yield return bundleWWW;
     if (bundleWWW.error != null)
     {
         Debug.Log("WWW download had an error:" + bundleWWW.error);
     }
     else
     {
         AssetBundle myLoadedAssetBundle = bundleWWW.assetBundle;
         myLoadedAssetBundle.LoadAll();
         Debug.Log("Download Completed now load level");
         Application.LoadLevel("AbandonedDay");
     }
 }

can anyone help me with this. Thanks