I made a GameObject array to keep track of the current enemies for easy referencing, however I cannot get it to work right. It seems like everything is in order, and I can compile and play, but I get the NullReferenceException error when I play.

I am trying to create a script for platforms that the characters can pass through the bottom of.

The three errors I get are

NullReferenceException: Object reference not set to an instance of an object EnemySpawn.Start () (at Assets/Custom Assets/Scripts/Enemy/EnemySpawn.js:18)

NullReferenceException: Object reference not set to an instance of an object Passable Platform.Update () (at Assets/Custom Assets/Scripts/Stage/Passable Platform.js:18)

NullReferenceException: Object reference not set to an instance of an object EnemySpawn.Start () (at Assets/Custom Assets/Scripts/Enemy/EnemySpawn.js:18)

And the Scripts are

------------------EnemySpawn.js--------------------

var spawn : Transform;
var spawnAtStart : boolean = false;
var self : GameObject;
var spawnedBool : boolean = false;
var myClone : GameObject;
var myCloneHealthScript : EnemyHealth;
var cloneBool : boolean = true;
var myCloneFollowScript : EnemyFollow;
var player : GameObject;
var StatisticsScript : Statistics;

function Start(){

    player = GameObject.FindWithTag("Player");
    StatisticsScript = player.GetComponent(Statistics);

    for (var i = 0; i <= StatisticsScript.enemyCount.Length; i++)
    {

        if(StatisticsScript.enemyCount != GameObject) {

            StatisticsScript.enemyCount[i] = gameObject;

         return;

        }

    }

}

function Update () {

    if(spawnAtStart == true){
       spawnAtStart = false;
       spawnedBool = true;
       Spawn();
       }else{
         if(spawnedBool == false){
          spawnedBool = true;        
          Spawn();                 
         }
       }
}




function Spawn() {
    spawnedBool = true;

    myClone = Instantiate(self, spawn.position, Quaternion.identity);

    myClone.name = "Clone";

    myCloneHealthScript = myClone.GetComponent(EnemyHealth);

    myCloneHealthScript.cloneCheck = cloneBool;

    myCloneFollowScript = myClone.GetComponent(EnemyFollow);

    myCloneFollowScript.cloneCheck = cloneBool;
}

--------------------------Passable Platform.js-------------------------------

var StatisticsScript : Statistics;

//***********************************************************************************************
function Update () {

    player = GameObject.FindWithTag("Player");
    StatisticsScript = player.GetComponent(Statistics);

    /* if the player is made up of more than one collider, you'd
       need to iterate over the colliders and use playerBounds.Encapsulate()*/

    for(var i = 0; i <= StatisticsScript.enemyCount.Length; i++)
    {

        enemyBounds = StatisticsScript.enemyCount[i].collider.bounds;
        enemyCheck(enemyBounds, StatisticsScript.enemyCount[i]);

    }

    playerBounds = player.collider.bounds;
    playerCheck();


}

//***********************************************************************************************
function playerCheck(){

    //check bottom of player to see if it is above the platform
    if(playerBounds.min.y >= collider.bounds.max.y)
    {
        Debug.Log("player is above platform");
        //make the platform solid
        Physics.IgnoreLayerCollision(8, 10, false);

    }else{
        Debug.Log("player is below platform");
        //turn off platform collision
        Physics.IgnoreLayerCollision(8, 10, true);

    }

}

//***********************************************************************************************
function enemyCheck(enemyBounds : Bounds, enemy : GameObject){

    if(enemyBounds.min.y >= collider.bounds.max.y)
    {

       Physics.IgnoreCollision(collider, enemy.collider, false);

    }else{

       Physics.IgnoreCollision(collider, enemy.collider,true);

    }

}

----------The relevant script from Statistics.js----------

static var enemyCount : GameObject[];