How do i get rid of these cc errors?

using UnityEngine;
using System.Collections;
[RequireComponent (typeof(CharacterController))]
public class NewBehaviourScript : MonoBehaviour {

public float movementspeed = 5.0f; 
public float MouseSensitivity = 5.0f;
public float JumpSpeed = 20.0f;
float verticalrotation = 0f;
public float UpDownRange = 60.0f;
float verticalvelocity = 0f;
CharacterController characterController;
	// Use this for initialization
 void Start () {
	CharacterController characterController = GetComponent<CharacterController> ();
	//this hides the mouse
	Screen.lockCursor = true;
}

// Update is called once per frame
void Update () {

	//Movement with mouse across screen
	float rotleftright = Input.GetAxis ("Mouse X")*MouseSensitivity;
	transform.Rotate(0.0f ,rotleftright,0.0f);
	//movement of mouse up and down
	verticalrotation -= Input.GetAxis ("Mouse Y") * MouseSensitivity;
	verticalrotation = Mathf.Clamp (verticalrotation, -UpDownRange, UpDownRange); 

	Camera.main.transform.localRotation = Quaternion.Euler(verticalrotation, 0, 0);

	// This is all movement coding
float ForwardSpeed = Input.GetAxis("Vertical")* movementspeed;
float sidespeed = Input.GetAxis("Horizontal")* movementspeed;

					
					
	verticalvelocity += Physics.gravity.y * Time.deltaTime;

	if (cc.isGrounded && Input.GetButtonDown ("Jump")) {
		verticalvelocity = JumpSpeed;
			}

	Vector3 speed = new Vector3 (sidespeed, verticalvelocity, ForwardSpeed);


	speed = transform.rotation * speed;

	cc.Move(speed * Time.deltaTime );
}

}

These are the errors -Assets/Scripts/NewBehaviourScript.cs(15,37): warning CS0219: The variable `characterController’ is assigned but its value is never used

-Assets/Scripts/NewBehaviourScript.cs(41,21): error CS0103: The name `cc’ does not exist in the current context

-Assets/Scripts/NewBehaviourScript.cs(50,17): error CS0103: The name `cc’ does not exist in the current context

Sorry but im trying to make the CC more efficient and got stuck can anbody help me? :slight_smile: Sorry if im asking too many questions

Either replace the occurrences of ‘characterController’ on lines 7 and 10 with ‘cc’, or replace the occurrences of ‘cc’ with ‘characterController’ on lines 26 and 45.

@robertbu is correct

I’d also add that this line:

CharacterController characterController = GetComponent<CharacterController> ();

should just be

characterController = GetComponent<CharacterController> ();

You don’t want to redeclare your class variable.