Movement with iTween and parameter

Hi everyone, I'm trying to duplicate an object, position it at a desired position, and then use iTween.moveTo to move the object to the mouse click position.

So far, I'm here:

Edit: I realised the problem was I was trying to move a RigidBody when moveTo only accepts GameObjects, so I came with this idea to create a GameObject, make it parent of my rigidBody and then move the GameObject... but everytime I hit play my Unity Crashes... so I guess it doesn't work.

 var rocket : Rigidbody;
 var wandEmisor : GameObject;
 
 var speed = 10.0;
 
 function FireRocket (hitPoint) {
     var rocketClone : Rigidbody = Instantiate(rocket, transform.position, transform.rotation);
     
     rocketClone.transform.position = wandEmisor.transform.position;
     
     var rocketDummy : GameObject;
     rocketDummy.transform.position = rocketClone.transform.position;
     rocketClone.parent = rocketDummy;
 
     iTween.MoveTo(rocketDummy,hitPoint,2);
 }
 
 // Calls the fire method when holding down ctrl or mouse
 function LateUpdate () {
     if (Input.GetButtonDown("Fire1")) {
         
         var ray = Camera.main.ScreenPointToRay(Input.mousePosition);
         var ent : float = 100.0;
         var hitPoint : Vector3 = ray.GetPoint(ent);
         print(hitPoint);
         
         //print(ray);
         FireRocket(hitPoint);
     }
 }

I can't seem to figure out why I'm getting an error on the moveTo line.

"No appropriate version of 'iTween.MoveTo' for the argument list '(UnityEngine.Rigidbody, Object, int)' was found."

The function uses a Vector3, and I'm passing to the function a vector3... so what's the problem here?

Thanks!