method not found: Input.GetButtonUp

None of the “getbutton” methods are being recognised? Were these made obsolete? Am I reading old manuals? What replaced them? here’s the script, copied and pasted right out of the reference. Unity won’t allow the game to run.

var projectile : GameObject;
function Update ()
{
    if (Input.GetButtonUp ("Jump"))
    {
        Instantiate (projectile, transform.position, transform.rotation);
    }
}

Don’t name your scripts the same thing as Unity classes. (Technically you can differentiate between them, but it’s a bit of a pain.) Also, format your code when you post, please, it only takes 2 seconds.