I dont know what is wrong with my code, im trying to make a wandering AI and the error shows

See more:

C#

Unity

Unity3D

this is the console error from unity

[11:27:31] Assets\WanderingAI.cs(44.17) Error CS0116: a namespace cannot directly contain members such as fields or methods

The code i use is here

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

public class WanderingAI : MonoBehaviour {

public float moveSpeed = 3f;
public float rotSpeed = 100f;

private bool Iswandering = false;
private bool Isrotatingleft = false;
private bool Isrotatingright = false;
private bool Iswalking = false;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        if(Iswandering == false)
        {
            StartCoroutine(Wander());
        }
        if(Isrotatingright == true);
        {
            transform.Rotate(transform.up * Time.deltaTime * moveSpeed);
        }
        if(Isrotatingleft  == true);
        {
            transform.Rotate(transform.up * Time.deltaTime * -moveSpeed);
        }
    }




    }


    IEnumerator Wander()
    {
        int rotTime = Random.Range(1, 3);
        int rotateWait = Random.Range(1,4);
        int rotateLorR = Random.Range(1,2);
        int walkWait = Random.Range(1,4);
        int walkTime = Random.Range(2,5);

        Iswandering = true;

        yield return new WaitForSeconds(walkWait);
        Iswalking = true;
        yield return new WaitForSeconds(walkTime);
        Iswalking = false;
        yield return new WaitForSeconds(rotateWait);
        if(rotateLorR == 1)
        {
            Isrotatingright = true;
            yield return new WaitForSeconds(rotTime);
            Isrotatingright = false;
        }
        if(rotateLorR == 2)
        {
            Isrotatingright = true;
            yield return new WaitForSeconds(rotTime);
            Isrotatingleft = false;
        }
        Iswandering = false;
    }

What I have tried:

i tried checking the code multiple times and checing tutorials but i still cant find the problem.