I cannot understand where the Object reference is not set to an instance of an object?

NullReferenceException: Object reference not set to an instance of an object TouchHandler.TouchControl () (at Assets/Script/TouchHandler.cs:78) TouchHandler.Update () (at Assets/Script/TouchHandler.cs:39)

I get this error and i cant figure out why. I thought some fresh eyes might help, anyone? Thank You.

using UnityEngine; using System.Collections;

public class TouchHandler : MonoBehaviour {

 /*****All the touch variables******/
 private Vector2     fp;                 // first finger position
 private Vector2     lp;                 // last finger position
 private float       angle;            
 private float       swipeDistanceX;
 private float       swipeDistanceY;
 private int         swipeDistance = 50;    // Distance fingure to travell to register as a swipe
 private Touch       touch;            // touch variable        



 /*****All the Raycast variables******/
 Ray ray;
 RaycastHit hitInfo = new RaycastHit();

 /*****All the PlayerController script variables******/
 private PlayerController PC_component;


 //private MovementHandler movementHandlerScriptComponent;


 void Start()
 {
     PC_component = GetComponent<PlayerController>();

     //movementHandlerScriptComponent = GetComponent<MovementHandler>();
     //movementHandlerScriptComponent.SetisBaseNameSet(false);
 }

 void Update () 
 {
     TouchControl();
 }

 void OnGUI()
 {
     foreach(Touch t in Input.touches)
     {
         string message = "";
         
         message += "ID: "         + t.fingerId             + "\n"; 
         message += "Phase: "     + t.phase.ToString()     + "\n";
         message += "TapCount: " + t.tapCount             + "\n";
         message += "X: "         + t.position.x             + "\n";
         message += "Y: "         + t.position.y             + "\n";
         message += "Delta: "     + t.deltaPosition         + "\n";
         int num = t.fingerId;
         
         GUI.Label(new Rect(0 + 130 * num, 0, 120, 120), message);
         
     }
 }
 void castingRay()
 {
     if(Physics.Raycast(ray,out hitInfo))
     {
         if(hitInfo.transform.tag == "Base")
         {
             PC_component.spawnPlayer(hitInfo);

             //movementHandlerScriptComponent.Setsb_(hitInfo);
             //movementHandlerScriptComponent.SetisBaseNameSet(true);
         }
     }
 }
 void TouchControl()
 {
     if(Input.touchCount == 1)
     {
         touch = Input.GetTouch(0);
         ray = Camera.main.ScreenPointToRay(touch.position);
         
         if (touch.phase == TouchPhase.Began)
         {
             fp = touch.position;
             lp = touch.position;
             
             //Raycasting
             //if(movementHandlerScriptComponent.GetisBaseNameSet() == false)
             if(PC_component.isPlayerSpawned == false)
                 castingRay();
         }
         if (touch.phase == TouchPhase.Moved )
         {
             lp = touch.position;
             swipeDistanceX = Mathf.Abs((lp.x-fp.x));
             swipeDistanceY = Mathf.Abs((lp.y-fp.y));
         }
         if(touch.phase == TouchPhase.Ended)
         {
             angle = Mathf.Atan2((lp.x-fp.x),(lp.y-fp.y))*57.2957795f;
             swipeControlls();
         }
     }
 }

 void swipeControlls()
 {
     if(angle > 60 && angle < 120 && swipeDistanceX > swipeDistance)
     {
         Debug.Log("right");
         PC_component.moveDirection = "right";
     }
     if(angle > 150 || angle < -150 && swipeDistanceY > swipeDistance)
     {
         Debug.Log("down");
     }
     if(angle < -60 && angle > -120 && swipeDistanceX > swipeDistance)
     {
         Debug.Log("left");
         PC_component.moveDirection = "left";
     }
     if(angle > -30 && angle < 30 && swipeDistanceY > swipeDistance)
     {
         Debug.Log("up");
     }
 }

}