I want to add an collider automatically to the gameobject with the script.

When trying to attach the script to any gameobject in the hierarchy it’s showing this error message:

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

[RequireComponent(typeof(Collider))]
public class InteractableItem : MonoBehaviour
{
    public enum InteractableMode
    {
        Description,
        Action
    }

    [Header("Interaction Settings")]
    public InteractableMode interactableMode = InteractableMode.Description;
    public float interactionDistance = 5f;
    [TextArea(1, 10)]
    public string description = "";

    private IKControl ikControl;

    private void Start()
    {
        ikControl = FindObjectOfType<IKControl>();
        if (ikControl != null)
        {
            ikControl.lookObjects.Add(transform);
        }
    }

    public bool IsAction()
    {
        return interactableMode == InteractableMode.Action;
    }

    private void OnDestroy()
    {
        if (ikControl != null && ikControl.lookObjects.Contains(transform))
        {
            ikControl.lookObjects.Remove(transform);
        }
    }
}