c# - error CS0103: The name `hit' does not exist in the current context (cardboard switching)

I have been trying make a c# script that can change the cardboard camera to other cardboard camera, like when a character choose a chair, he teleport to cardboard camera on this chair: Basically I just want switch cardboard camera for another cardboard camera.

This is c# script that I use:

 using UnityEngine;
 using System;
 using System.Collections;
 using System.Collections.Generic;
 
 public class teste1 : MonoBehaviour {
     
     public GameObject[] CamInicial = new GameObject[59]; // inicialização da camera
     public GameObject[] CamNext = new GameObject[59]; // camera para a qual se vai fazer switch
     int n; // id da camera
 
     // Use this for initialization
     void Start()
     {
 
     }
 
     // Update is called once per frame
     void Update()
     {
         if (Physics.Raycast(transform.position, transform.forward, out hit))
         {
             if (CamNext[n] != null)
             {
                 switchCameras(n);
             }
         }
     }
        
 
     private void switchCameras(int keyNum)
     {
         for (int i = 0; i < CamNext.Length + 1; i++)
         {
             if (CamNext[i] != null && keyNum != i)
             {
                 // turn camera off
                 CamNext[i].GetComponent<CardBoard>().enabled = false;
             }
             else {
                 // turn camera on
                 CamNext[i].GetComponent<CardBoard>().enabled = true;
             }
         }
     }
 }

Console error:

Assets/Scripts/teste1.cs(22,72): error CS0103: The name `hit' does not exist in the current context