About Delete save game of Unity Serializer

Questions & Answers
1

Hi I’m writing a script to delete save game(in game), everything is ok, but when I add this code to my script

/*

for(var sg in LevelSerializer.SavedGames[LevelSerializer.PlayerName])

{
   if(GUILayout.Button("Delete: " + sg.Caption))
   {
      sg.Delete();
   }
}

*/

It said:

“InvalidOperationException: Collection was modified; enumeration operation may not execute.
System.Collections.Generic.List1+Enumerator[LevelSerializer+SaveEntry].VerifyState () (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.Collections.Generic/List.cs:778) System.Collections.Generic.List1+Enumerator[LevelSerializer+SaveEntry].MoveNext () (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.Collections.Generic/List.cs:784)
PauseMenu.OnGUI () (at Assets/UnitySerializer/Scripts/PauseMenu.js:79)”

***** How can I fix it? Plese help me

**Here is my script

import System.Collections.Generic;

var paused : boolean = false; 
var pausedGUI : GUITexture;  
var gameName : String = "Your Game";

var myList = new List.<Transform>();

function Start()
{
	if(pausedGUI)
		pausedGUI.enabled = false;
}

function Update () 
{ 
    if (Input.GetKeyUp("p")) 
    { 
       paused = !paused;

	    if(paused == true)
	    {
	        Time.timeScale = 0.0;
	        AudioListener.pause = true;
			firstPersonControllerCamera = gameObject.Find("First Person Controller").GetComponent("MouseLook");
			mainCamera = gameObject.Find("Main Camera").GetComponent("MouseLook");
			firstPersonControllerCamera.enabled = false;
			mainCamera.enabled = false;
	        if(pausedGUI) 
	        {
	        	pausedGUI.enabled = true;
			}
		}
				
	    else
	    {
	        Time.timeScale = 1.0;
	        AudioListener.pause = false;
		firstPersonControllerCamera = gameObject.Find("First Person Controller").GetComponent("MouseLook");
		mainCamera = gameObject.Find("Main Camera").GetComponent("MouseLook");
		firstPersonControllerCamera.enabled = true;
		mainCamera.enabled = true;
			if(pausedGUI) 
			{
				pausedGUI.enabled = false;
	   		}
	   }
   }
}

function OnGUI() 
{
	if(!paused)
	{
	   GUILayout.BeginArea(Rect(200,10,400,20));
	   GUILayout.BeginVertical();
	   GUILayout.BeginHorizontal();
	   GUILayout.FlexibleSpace();
	   GUILayout.Label("Nhan P de Save/Load game");
	   GUILayout.FlexibleSpace();
	   GUILayout.EndHorizontal();
	   GUILayout.EndVertical();
	   GUILayout.EndArea();
	   return;
	}
	   
	var box : GUIStyle = "box";   
    GUILayout.BeginArea(Rect( Screen.width - 1025,Screen.height - 596, 400, 300), box);

    GUILayout.BeginVertical(); 
    GUILayout.FlexibleSpace();
    if(GUILayout.Button("Save Game"))
    {
       LevelSerializer.SaveGame(gameName);
    }
    GUILayout.Space(60);

    for(var sg in LevelSerializer.SavedGames[LevelSerializer.PlayerName]) 
    { 
       if(GUILayout.Button(sg.Caption)) 
       	{ 
         LevelSerializer.LoadNow(sg.Data);
         Time.timeScale = 1;
        } 
        if(GUILayout.Button("Delete: " + sg.Caption))
	    {
	       sg.Delete();
	 	 } 
    }
    
	    
    GUILayout.FlexibleSpace();
    GUILayout.EndVertical();
    GUILayout.EndArea();


}
2