Whats wrong with my C-Sharp Script?

Here's my code:

using UnityEngine;
using System.Collections;

public class ExampleCS : MonoBehaviour {
   public GameObject player2;
   public Vector3 pos = Vector3(1, 0, 1);

void Update () {
   player2.transform.position += pos; 

And Here's my error:

Assets/Scripts/ExampleCS.cs(6,30): error CS0119: Expression denotes a `type', where a variable, value or method group was expected

please help me!

new Vector3(1, 0, 1)

Not just Vector3(1, 0, 1).