Download and active database runtime

Hello,

I'm making Hololens App that download vuforia database and print it in a GameObject on the scene. in the editor it works fine but when i run the app on Hololens it doesn't work i think the problem is with the path that im using to download de database i paste here some pieces of code

to show how im doing the downlaod

First i download the files in a script called LoadDatas

IEnumerator GetXML()     {         WWW www = new WWW(url);         yield return www;

        //  var XML = www.text;         System.IO.File.WriteAllBytes(Application.streamingAssetsPath + "/Vuforia/150.xml", www.bytes);             }IEnumerator GetDAT()     {         WWW www = new WWW(url);         yield return www;

        System.IO.File.WriteAllBytes(Application.streamingAssetsPath + "/Vuforia/150.dat", www.bytes);     }

Then in other script called LoaderDataSet print the object and more

void LoadDataSet()     {              objectTracker = TrackerManager.Instance.GetTracker<ObjectTracker>();

        dataSet = objectTracker.CreateDataSet();       

        if (dataSet.Load(dataSetName))         {                         objectTracker.Stop();  // stop tracker so that we can add new dataset

            if (!objectTracker.ActivateDataSet(dataSet))             {                 // Note: ImageTracker cannot have more than 100 total targets activated                 Debug.Log("<color=yellow>Failed to Activate DataSet: " + dataSetName + "</color>");             }

            if (!objectTracker.Start())             {                 Debug.Log("<color=yellow>Tracker Failed to Start.</color>");             }

            int counter = 0;

            IEnumerable<TrackableBehaviour> tbs = TrackerManager.Instance.GetStateManager().GetTrackableBehaviours();             foreach (TrackableBehaviour tb in tbs)             {                              if (tb.name == "New Game Object")                 {

                    // change generic name to include trackable name                     tb.gameObject.name = ++counter + ":DynamicImageTarget-" + tb.TrackableName;

                    // add additional script components for trackable                     tb.gameObject.AddComponent<DefaultTrackableEventHandler>();                     tb.gameObject.AddComponent<TurnOffBehaviour>();

                    if (augmentationObject != null)                     {                         // instantiate augmentation object and parent to trackable                         GameObject augmentation = (GameObject)GameObject.Instantiate(augmentationObject);                         augmentation.transform.parent = tb.gameObject.transform;                         augmentation.transform.localPosition = new Vector3(0f, 0f, 0f);                         augmentation.transform.localRotation = Quaternion.identity;                         augmentation.transform.localScale = new Vector3(1f, 1f, 1f);                         augmentation.gameObject.SetActive(true);                     }                     else                     {                         Debug.Log("<color=yellow>Warning: No augmentation object specified for: " + tb.TrackableName + "</color>");                     }                 }             }         }         else         {             Debug.LogError("<color=yellow>Failed to load dataset: '" + dataSetName + "'</color>");         }     }

Thanks in advance!