Unable to create User defined targets

I am trying to create a User Defined target on runtime using the below script.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using Vuforia;
5.  
6. public class UserDefinedTargetScript : MonoBehaviour,IUserDefinedTargetEventHandler {
7.  
8.      UserDefinedTargetBuildingBehaviour userTargetBuildingBehaviour;
9.      ObjectTracker objectTracker;
10.      DataSet dataSet;
11.  
12.      ImageTargetBuilder.FrameQuality globalFrameQuality;
13.      int track = 0;
14.  
15.     public ImageTargetBehaviour imageTargetBehaviour;
16.  
17.     void Start()
18.     {
19.         userTargetBuildingBehaviour = GetComponent<UserDefinedTargetBuildingBehaviour>();
20.         if (userTargetBuildingBehaviour != null)
21.         {
22.             userTargetBuildingBehaviour.RegisterEventHandler(this);
23.         }
24.     }
25.  
26.     public void OnFrameQualityChanged(ImageTargetBuilder.FrameQuality frameQuality)
27.     {
28.         globalFrameQuality = frameQuality;
29.     }
30.  
31.     public void OnInitialized()
32.     {
33.         objectTracker = TrackerManager.Instance.GetTracker<ObjectTracker>();
34.         if (objectTracker != null)
35.         {
36.             dataSet = objectTracker.CreateDataSet();
37.             objectTracker.ActivateDataSet(dataSet);
38.         }
39.     }
40.  
41.     public void OnNewTrackableSource(TrackableSource trackableSource)
42.     {
43.         track++;
44.         objectTracker.DeactivateDataSet(dataSet);
45.  
46.         dataSet.CreateTrackable(trackableSource, imageTargetBehaviour.gameObject);
47.  
48.         objectTracker.ActivateDataSet(dataSet);
49.  
50.         userTargetBuildingBehaviour.StartScanning();
51.     }
52.  
53.     public void BuildTarget()
54.     {
55.         if(globalFrameQuality == ImageTargetBuilder.FrameQuality.FRAME_QUALITY_HIGH)
56.         {
57.             userTargetBuildingBehaviour.BuildNewTarget(track.ToString(),imageTargetBehaviour.GetSize().x);
58.             GetComponent<NNConnector>().SendDatatoModel();
59.         }
60.     }
61.    
62. }
63.  

I am unable to start my camera and receiving the below error :

Dataset target could not be loaded and cannot be activated.
UnityEngine.Debug:LogError(Object)
Vuforia.DatabaseLoadARController:LoadDatasets()
Vuforia.VuforiaARController:StartAfterInitializationCompleted()
Vuforia.VuforiaARController:UpdateState(Boolean, Boolean)
Vuforia.DigitalEyewearARController:Update()
System.DelegateynamicInvoke(Object[])
Vuforia.DelegateHelper:InvokeDelegate(Delegate, Object[])
Vuforia.DelegateHelper:InvokeWithExceptionHandling(Action)
Vuforia.VuforiaBehaviour:Update()

Attached is the vuforia configuration.

 

Hello,

How does your script compare to our sample code?

Thanks,
Vuforia Engine Support