Problem with var in C# (Vector3, transform and similiar)

Hello. Can someone help me with this error:

Assets/scriptPlayer.cs(22,47): error CS0119: Expression denotes a type', where a variable', value' or method group' was expected

And here is code : using UnityEngine; using System.Collections;

public class scriptPlayer : MonoBehaviour { public RaycastHit hit; public Ray ray; public Vector3 pos;

void Update () {

 if (Input.GetMouseButtonDown(0))
 {
     Debug.Log("Yes the button works");
     
     ray = Camera.main.ScreenPointToRay(Input.mousePosition);
     if (Physics.Raycast(ray,out hit,100.0f))
     {
         if (hit.transform.tag == "enemy")
             {
                 pos = Vector3(Random.Range(-6,6),Random.Range(-3,3),0);
                 hit.transform.position=pos;
                 
                 Debug.Log("Ray hit");
             }
     }
     }
 }

}