TouchInput doesn't not exist in current content

Hi! I wrote basic mobile code here: using UnityEngine; using System.Collections;

 public class TouchManager : MonoBehaviour {
     public static bool guiTouch = false;
 
     public void TouchInput(GUITexture texture)
     {
         if (texture.HitTest(Input.GetTouch(0).position))
         {
             switch (Input.GetTouch(0).phase)
             {
             case TouchPhase.Began:
                 SendMessage ("OnFirstTouchBegan");
                 guiTouch = true;
                 break;
             case TouchPhase.Stationary:
                 SendMessage ("OnFirstTouchStayed");
                 guiTouch = true;
                 break;
             case TouchPhase.Moved:
                 SendMessage ("OnFirstTouchMoved");
                 guiTouch = true;
                 break;
             case TouchPhase.Ended:
                 SendMessage ("OnFirstTouchEnded");
                 guiTouch = false;
                 break;
             }
         }
         if (texture.HitTest(Input.GetTouch(1).position))
         {
             switch (Input.GetTouch(1).phase)
             {
             case TouchPhase.Began:
                 SendMessage ("OnSecondTouchBegan");
                 break;
             case TouchPhase.Stationary:
                 SendMessage ("OnSecondTouchStayed");
                 break;
             case TouchPhase.Moved:
                 SendMessage ("OnSecondTouchMoved");
                 break;
             case TouchPhase.Ended:
                 SendMessage ("OnSecondTouchEnded");
                 break;
             }
     }
  }
 }
 

and this code using UnityEngine; using System.Collections;

 public class ButtonMovement : MonoBehaviour {
     public enum type{LeftButton, RightButtonm, JumpButon};
     public type buttonType;
         
     public GameObject playerObject = null;
 
     public GUITexture buttonTexture = null;
     // Use this for initialization
     void Start () {
     
     }
     
     // Update is called once per frame
     void Update () {
         TouchInput (buttonTexture);
     }
 }
 

I second code to 3 buttons in unity... But why i'm having error wih TouchInput in second code it says: "Assets/Scripts/ButtonMovement.cs(18,17): error CS0103: The name `TouchInput' does not exist in the current context" It seems like i can't access to new function in first script but why? I watched tutorial on youtube and for him it works? I hope you understand me :P