NullReferenceException Error

Questions & Answers
1

I am trying to write a script that will move a group from its current position to an “Examine” position. This will happen upon clicking a button. Also, a cube will appear, and the camera will move to a designated spot. Here’s my current script:

#pragma strict
private var outside1:Transform;
private var originalspotTC: Transform;
private var moved = false;
static var main: Camera;
private var CameraBlack: Transform;
private var CameraStart: Transform;
private var BlackPicture: GameObject;
private var stringToEdit: String ="Some stuff";
function Start(){
	originalspotTC=transform.Find("/OriginalAdenine");
	outside1=transform.Find("/ExamineAdenine");
	CameraBlack=transform.Find("/CameraA");
	CameraStart=transform.Find("/MainCameraStart");
	BlackPicture=GameObject.Find("/CubeA");
}
function OnGUI(){
	GUILayout.BeginHorizontal();
	GUILayout.Space(200);
	
	if(GUI.Button(Rect(50,50,150,50),"Examine A")){
		if(moved){
			moved=false;
			BlackPicture.renderer.enabled=false;
		}
		else
		{
			moved=true;
		}
	}
	GUILayout.EndHorizontal();
	
	if(moved){
		transform.position=outside1.position;
		stringToEdit=GUI.TextArea(Rect(800,100,100,100),stringToEdit,200);
		Camera.main.transform.position=CameraBlack.position;
		BlackPicture.renderer.enabled=true;
	}
else{
		transform.position=originalspotTC.position;
		Camera.main.transform.position=CameraStart.position;
		BlackPicture.renderer.enabled=false;
}
}

Any help on the error: NullReferenceException
Adenine.OnGUI () (at Assets/Adenine.js:41)
and
NullReferenceException
Adenine.OnGUI () (at Assets/Adenine.js:36)

Thanks

2

This must have failed:

CameraStart=transform.Find(“/MainCameraStart”);

Make sure you have a Camera on an object called MainCameraStart and that it is at the top level of the hierarchy