Unity世界坐标转换为屏幕坐标，为什么一运行就报空指针错误？

Question

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

public class de : MonoBehaviour {
    
    void Start() {
    
}
    
    void Update(){
        MovementRoate();
       
    }
    public Vector3 screenVector;
    
    void MovementRoate()
    {
        

        screenVector = Camera.main.WorldToScreenPoint(this.transform.position);           
       
     
    }
    
}

//错误如下NullReferenceException: Object reference not set to an instance of an object
de.MovementRoate () (at Assets/de.cs:23)
de.Update () (at Assets/de.cs:14)

Answer 1

Camera.main.找的是这个相机，你看你场景中的主相机是不是tag不对