Please have a read: How to report a problem in the Unity3D forums – PLBM Games
Please use Code Tags .
At least tell us what kind of error you have. This request for help is like parking your car at the mechanic, telling him that there is a problem, then walking away.
Edit: Did you remove some of the using lines at the top?
Any newly created script in Unity should come with the following directly added:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;