Object reference not set to any instance of an object

Questions & Answers
1

I’m using this code to check if button F1 was pressed, and if it was to make MenuCam the man camera. But I just keep getting the error: Object reference not set to any instance of an object.

var MenuCam : GameObject;
var FPSPlayerCam : GameObject;

function Update(){
	if (Input.GetButtonDown.KeyCode.F1);
		Camera.main.gameObject.active = false;
		MenuCam.active = true;
}
2

There are few problems in your script
Use this script instead

var MainCam:Camera;

var Cam2:Camera;

function Start(){

MainCam.enabled = true;
Cam2.enabled = false;
}

function Update(){
if(Input.GetKeyDown(KeyCode.F1){
MainCam.enabled = !MainCam.enabled;
Cam2.enabled = !Cam2.enabled;
}
}

Script is in working condition

3

If anyone else need the full script here is is:

var FPSCam : Camera;
var MenuCam : Camera;

function Start(){
FPSCam = Camera.main;
FPSCam.enabled = true;
MenuCam.enabled = false;
}

function Update(){
if(Input.GetKeyDown(KeyCode.F1))
FPSCam.enabled = !FPSCam.enabled;
MenuCam.enabled = !MenuCam.enabled;
}

Checked and working. Thanx to deltamish and Seth Bergman.