You are not allowed to call get_rigidbody when declaring a variable.

When using the speedometer script below im getting the error:

ArgumentException: You are not allowed to call get_rigidbody when declaring a variable. Move it to the line after without a variable declaration. Don't use this function in the constructor or field initializers, instead move initialization code to the Awake or Start function. NumericalSpeedometer..ctor () (at Assets/Scripts/JavaScripts/GUIScripts/NumericalSpeedometer.js:2)

How can i call the rigidbody from a the awake/start function?

var car = rigidbody; private var mph = 0; var gSkin : GUISkin;

function Awake (){

} function Update(){ var speed = car.velocity.magnitude * 2.237; mph = speed; }

function OnGUI(){

if (gSkin) GUI.skin = gSkin; else Debug.Log("StartMenuGUI: GUI Skin object missing!");

GUI.Box(new Rect(30, Screen.height - 100, 40, 70), "" + mph, "Speedometer"); }