NullReferenceExecption: Problem NEED HELP!

Unity Engine
1

I can not move when ever i go into the testing of the game
This is my player movement script

var walkAcceleration : float = 5;

var walkAccelAirRacio : float = 0.1;

var walkDeacceleration : float = 5;

@HideInInspector

var walkDeaccelerationVolx : float;

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var walkDeaccelerationVolz : float;

var cameraObject : GameObject;

var maxWalkSpeed : float = 20;

@HideInInspector

var horizontalMovement : Vector2;

var jumpVelocity : float = 20;

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var grounded : boolean = false;

var maxSlope : float = 60;

function LateUpdate ()

{

horizontalMovement = Vector2(rigidbody.velocity.x, rigidbody.velocity.z);

if (horizontalMovement.magnitude > maxWalkSpeed)

{

horizontalMovement = horizontalMovement.normalized;

horizontalMovement *= maxWalkSpeed;

}

rigidbody.velocity.x = horizontalMovement.x;

rigidbody.velocity.z = horizontalMovement.y;

if (grounded){

rigidbody.velocity.x = Mathf.SmoothDamp(rigidbody.velocity.x, 0, walkDeaccelerationVolx, walkDeacceleration);

rigidbody.velocity.z = Mathf.SmoothDamp(rigidbody.velocity.z, 0, walkDeaccelerationVolz, walkDeacceleration);}

transform.rotation = Quaternion.Euler(0, cameraObject.GetComponent(MouseLookScript).currentYRotation, 0);

if (grounded)

rigidbody.AddRelativeForce(Input.GetAxis(“Horizontal”) * walkAcceleration * Time.deltaTime, 0, Input.GetAxis(“Vertical”) * walkAcceleration * Time.deltaTime);

else

rigidbody.AddRelativeForce(Input.GetAxis(“Horizontal”) * walkAcceleration * walkAccelAirRacio * Time.deltaTime, 0, Input.GetAxis(“Vertical”) * walkAcceleration * walkAccelAirRacio * Time.deltaTime);

if (Input.GetButtonDown(“Jump”) grounded)

rigidbody.AddForce(0,jumpVelocity,0);

}

function OnCollisionStay (collision : Collision)

{

for (var contact : ContactPoint in collision.contacts)

{

if (Vector3.Angle(contact.normal, Vector3.up) < maxSlope)

grounded = true;

}

}

function OnCollisionExit ()

{

grounded = false;

}
Before I was able to move around and look around, but now i’m only allowed to look around
i was following ETeeskiTutorials on youtube (FPS1.4 Setting a Max Walk Speed. Unity3D FPS Game Design Tutorial.)

2

The error console will tell you the line number in the script. If that’s not helpful to you it surely will be helpful to anybody wanting to help you. Please copy/paste the exception from the console.