error CS0120: An object reference is required to access non-static member

I do not understand why i get the errors? I have objects assigned to the properties.

Code (CSharp):

1. public class Replay_Script : MonoBehaviour {
2.  
3.     public GameObject gameBackground;
4.     public GameObject go_pnl_Replay;
5.     public Button btn_ExitReplay;
6.     private bool firstRun;
7.     private Color32 defaultBackgroundColor = Color.white;
8.     private List<string> originalCardsPosition = new List<string>();
9.  
10.     public static void PrepareForReplay () {
11.  
12.         gameBackground.GetComponent<Renderer> ().material.color = Color.magenta;
13.  
14.         // DISPLAY THE REPLAY PANEL WITH BUTTONS
15.         go_pnl_Replay.SetActive (false);
16.  
17.  
18.         PositionObjectsOnInitialPositionsAndSortLevels ();
19.  
20.     }
21.  
22.     void PositionObjectsOnInitialPositionsAndSortLevels () {
23.  
24.     ...

I get the following errors:

 

I believe you'll find the answer here.

 

Your function is static - the function doesn't exist as a part of any particular object, but rather as a class function. Your gameBackground, etc member variables are local variables, and ARE attached to one instance of your object. When your static function goes looking for the instance variables, it has no way of knowing where to find them.

Remove that 'static' from that function definition. I'm guessing that you have that there so that you can make the function call as Replay_Script.PrepareForReplay() from anywhere, and that removing 'static' will cause those references to be broken. If that's the case, I recommend turning the class into a singleton - have a single static variable, 'main' or 'instance' or what have you; in the script's Awake(), set main=this; and then you can call Replay_Script.main.PrepareForReplay().

 

And you think i did not look there??? ...did but did not understand how that applied to my code.