Unity 2D Visual Studio text bulunamıyor

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Buton : MonoBehaviour
{
    public Text sahnedekiText;
    // Start is called before the first frame update
    void Start()
    {
     
    }

    // Update is called once per frame
    void Update()
    {

    }
        public void ButonIslemler() {


        sahnedekiText.text = "Unity UI";


    }
}