Unity C# Пишет что The modifier 'public' is not valid for this item. (34,5)

 using System.Collections; 
using System.Collections.Generic; 
using UnityEngine; 
using UnityEngine.UI; 
using UnityEngine.SceneManagement; 
using TMPro; 
 
public class woodscr : MonoBehaviour 
{ 
    [SerializeField] public  int time = 1; 
    [SerializeField] public  int woodplus; 
    [SerializeField] public  int cooldown = 0; 
    [SerializeField] public TMP_Text timer; 
     
    // Update is called once per frame 
    void Update() 
    { 
        timer.text = time.ToString(); 
        if (time == 0) { 
            time = 1; 
            data.wood +=woodplus; 
            StopCoroutine(Timer()); 
        } 
    } 
    public void Exit() { 
        SceneManager.LoadScene("map"); 
    } 
    private IEnumerator Timer() { 
    while(true) { 
        yield return new WaitForSeconds(1); //wait 2 seconds 
        time -=1; 
    } 
     
    public void Ten() { 
        time = 30; 
        woodplus = 10; 
        StartCoroutine(Timer()); 
    } 
    public void Tenten() { 
        time = 40; 
        woodplus = 20; 
        StartCoroutine(Timer()); 
    } 
    public void Tententen() { 
        time = 50; 
        woodplus = 30; 
        StartCoroutine(Timer()); 
    } 
} 
 
}