Assets\standard assets\utility\simpleactivatormenu.cs(13, 16): error CS0246: the type or namespace name 'text' could not be found (are you missing a using directive or an assembly reference? )

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



#pragma warning disable 618
namespace UnityStandardAssets.utility
{
    public class SimpleActivatorMenu 
    {
        
        public text camSwitchButton ;
        public GameObject[] objects;


        private int m_CurrentActiveObject;


        private void OnEnable(){
        
            // active object starts from first in array
            m_CurrentActiveObject = 0;
            camSwitchButton.T = objects[m_CurrentActiveObject].name;
        }


        public void NextCamera()
        {
            int nextactiveobject = m_CurrentActiveObject + 1 >= objects.Length ? 0 : m_CurrentActiveObject + 1;

            for (int i = 0; i < objects.Length; i++)
            {
                objects[i].SetActive(i == nextactiveobject);
            }

            m_CurrentActiveObject = nextactiveobject;
            camSwitchButton.T = objects[m_CurrentActiveObject].name;
             
        }
    }
}