Help - get variable with GetComponent error

Hi guys, i need some help here.

i want to get variable from another scene, but there's some error and i don't understand the error.

i have "sceneCity with scriptCity" and "sceneShop with scriptShop".

in sceneCity i drag "gameObject with scriptShop" to " var sceneShop in sceneCity inspector".

this is the step what variable i want to get :
1. when i click on shop button in sceneCity, i will move to sceneShop.
2. in sceneShop, when i click cube button, my variable isCube become true and i will back into sceneCity.
3. in sceneCity, i will print variable isCube after i click buy button at sceneShop

This is the error :
NullReferenceException: Object reference not set to an instance of an object
scriptCity.Start () (at Assets/scriptCity.js:42)


This is my script for sceneCity :

Code (csharp):

1. var sceneShop : scriptShop;
2.  
3. var isCube : boolean;
4.  
5. function Start () {
6.     sceneShop = gameObject.GetComponent(scriptShop);
7. isCube = sceneShop.isCube;
8.     print(isCube);
9. }
10.  
11. function OnGUI () {
12. if(GUI.Button(Rect(Screen.width / 2 + 220, Screen.height / 2 + 165, 50, 30),"Shop")){
13.         Application.LoadLevel("sceneShop");
14.     }
15. }
16.  
17.  

This is my script for sceneShop :

Code (csharp):

1.  
2. var isCube : boolean = false;
3. function OnGUI () {
4. if(GUI.Button(Rect(Screen.width / 2 - 100, Screen.height / 2 + 30, 50, 25),"Cube")){
5.         isCube = true;
6.         Application.LoadLevel("sceneCity");
7.     }
8. }

Hope you guys will help me.

Thanks

 

So - a few things here.

1- The error message you posted says the error is occurring in scriptCity.js which you did not post any code from.
2- If sceneCity has a public variable that you would presumably set via the Inspector then why are you setting it in Start()?
3- Your variable names are terrible. You have a variable named sceneShop which is actually of type scriptShop. sceneShop is also a type in and of itself so it becomes confusing rather quickly.

 

hahaha, sorry it's my fault if you confused to see my code. But thanks for your input, i'll change my code so it's can be much better

and i already solved this problem, there's someting i miss and wrong with my code and my step.

Thanks