Object Reference Not Set to the Instance of an Object

UPDATE: I solved the problem by setting the First Person Controller to use the FirstPersonController script, instead of MouseLook, which was included in the script already. I cleaned the code up as well. Thanks to everyone who helped and responded!


So, I was messing around with menuing, and I came across this error on my pause menu. I got this error multiple times, but could correct is very easily. This one however, I can't decode. It tells me the error is referencing line 8 (I included the full function). My game object for character is the Unity prefab FirstPersonController. Anyone help? Thanks!

Code (JavaScript):

1. function PauseGame()
2. {
3.     savedTimeScale = Time.timeScale;
4.     Time.timeScale = 0;
5.     AudioListener.pause = true;
6.     firstPersonControllerCamera = gameObject.Find("First Person Controller").GetComponent("MouseLook");
7.     mainCamera = gameObject.Find("Main Camera").GetComponent("MouseLook");
8.     firstPersonControllerCamera.enabled = false;
9.     mainCamera.enabled = false;
10.  
11.     if (pauseFilter)
12.     {
13.         pauseFilter.enabled = true;
14.     }
15.  
16.     currentPage = Page.Main;
17. }

 

For clarity, does that mean this line?

Code (csharp):

1.     firstPersonControllerCamera.enabled = false;

 

Yes, firstPersonCameraController is also declared as a private variable on the top of the code.

 

OK, so this means that the GetComponent is not finding the MouseLook component. Let's start by not using the string version of it - use GetComponent.<MouseLook>() instead.

 

It tells me that MouseLook does not denote a valid type. MouseLook is a script which I have in the FPSController. Also note that the error was a NullReferenceException. What is the script exactly referencing, because I gave it a value with the gameObject.Find code.

 

AS StarManta said, remove the quotation marks from MouseLook

7. mainCamera = gameObject.Find("Main Camera").GetComponent<MouseLook>();

However, why would you want to name your MouseLook variable mainCamera? I think what you're trying to do is this:

MouseLook mouseLook = gameObject.Find("Main Camera").GetComponent<MouseLook>();

OR alternatively

mainCamera = gameObject.Find("Main Camera");
mouseLook MouseLook = mainCamera.GetComponent<MouseLook>();

assuming mainCamera is of type Camera, you cannot store a class of type MouseLook

Hope this makes sense lol (and is right )

 

Oh, and secondly, you don't need to do a tag search for your main camera, unity has a function for this:

Camera.main
http://docs.unity3d.com/ScriptReference/Camera-main.html

MouseLook mouseLook = Camera.main.GetComponent<MouseLook>();

above function would do what u wanna do aswell.

 

technically the OP is doing a name search with the "find" (ewww!! ), and the Camera.main function just does a tag search but yeah, Camera.main is a far better approach

 

Last few replies haven't addressed the error that OP is getting now:

I haven't looked at the Standard Assets in a while - is MouseLook a C# script? If so, there's the problem there - Javascript can't see C# classes. There's a bit of a wall in between JS and C#.

Ultimately, the best advice I can give is to learn C# instead. First off, it's just objectively better, and second, in scenarios like this, C# classes can see other C# classes. It's less daunting than it seems - partly because Unity's scripting tutorials (all in C#) are really, really good.