how to set Object reference to an instance of an object

Questions & Answers
1

I get this error:

NullReferenceException: Object reference not set to an instance of an object Boo.Lang.Runtime.RuntimeServices.Dispatch (System.Object target, System.String cacheKeyName, System.Type[] cacheKeyTypes, System.Object[] args, Boo.Lang.Runtime.DynamicDispatching.DispatcherFactory factory) Boo.Lang.Runtime.RuntimeServices.Dispatch (System.Object target, System.String cacheKeyName, System.Object[] args, Boo.Lang.Runtime.DynamicDispatching.DispatcherFactory factory) Boo.Lang.Runtime.RuntimeServices.Invoke (System.Object target, System.String name, System.Object[] args)

Here's my code

public var myspeed = 3.0;

public var cratePrefab:Transform;

function Update () {

//find out if fire button pressed
if(Input.GetButtonDown("Fire1"))
{
    //Create the prefab
    var crate = Instantiate (cratePrefab, transform.position, Quaternion.identity);

    //add force to the prefab
    crate.Rigidbody.AddForce(transform.forward * 2000);
}

}

What is wrong?

2

Oh god - evil evil js not giving you an error about this:

crate.Rigidbody.AddForce(transform.forward * 2000);

should be

crate.rigidbody.AddForce(transform.forward * 2000);

It may also be worth doing

var crate : Transform = Instantiate (cratePrefab, transform.position, Quaternion.identity);

so that it stops allowing dynamic function calling on the crate reference

Edit:

I would also use AddRelativeForce so that you can use Vector3.forward instead of transform.forward, should be a little less computationally expensive