Why won't my script see the main camera?

Questions & Answers
1

This script is in a prefab. When I run the script, Unity says... "NullReferenceException: Object reference not set to an instance of an object"

function StartAtARandomSpot( zdepth : float )
{
    var campos : Vector3 = Vector3(Random.Range(0,scrWidth), scrHeight+80, zdepth);
    campos = Camera.main.ScreenToWorldPoint (campos);
    transform.position = campos;
    originalSpawnPoint = transform.position;    
}

Any help would be greatly appreciated.

2

Make sure that your camera is tagged as MainCamera, or "Camera.main" won't work. Otherwise, I've verified that your script is fine. Although, you could simplify it to:

function StartAtARandomSpot( zdepth : float )
{
    var campos : Vector3 = Vector3(Random.Range(0,scrWidth), scrHeight+80, zdepth);
    originalSpawnPoint = transform.position = Camera.main.ScreenToWorldPoint (campos);
}

(Note that you don't even need the campos variable, but for readability you could easily justify keeping it)