Issue with changing the name of iTween.Path() at runtime

newb alert!

Hey guys,

I am having troubles with changing the name of the path for an object during runtime (I need to assign each object a different Path name as I will have to instantiate around 30 objects) and the best way (I could think of) of doing that is by giving the Path the name of the gameObject.

Until now I have the following class:

 using UnityEngine;
 using System.Collections;
 
 public class TargetHelper : MonoBehaviour {
 
     public UILabel targetNameLabel;
     public UIWidget instructTo;
     public UIWidget directTo;
 
     private string pathName;
 
     void OnEnable()
     {
         AppManager.Instance.AssignRandomName();
         AssignName();
         Path();
     }
 
     void AssignName()
     {
         gameObject.transform.name = AppManager.Instance.randomName;
         targetNameLabel.text = "" + AppManager.Instance.randomName;
         AppManager.Instance.uiApp.targets.Add(AppManager.Instance.randomName);
     }
 
     void Path()
     {
         pathName = AppManager.Instance.randomName;
         gameObject.GetComponent<iTweenPath>().pathName = pathName;
         Debug.Log("Path name: " + gameObject.GetComponent<iTweenPath>().pathName);
         iTween.MoveTo(gameObject, iTween.Hash("path", iTweenPath.GetPath(gameObject.GetComponent<iTweenPath>().pathName), "time", 90, "easetype", iTween.EaseType.linear, "moveToPath", false));
     }
 }
 

But I keep receiving an

 NullReferenceException: Object reference not set to an instance of an object

Even if in the console I see that the Path name has been changed before the error is triggered

Any ideas on how I could fix this?

Thanks in advance.

PS: I'm using NGUI (not sure if matters)