my script was written but does not want to work

Hello, I am new in Unity and I try to write my first lines of code, for creating a character rotation.

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using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class MouseLook : MonoBehaviour
{
	
	public float mouseSensitivity = 100f;
	
	public Transform playerBody;
	
    // Start is called before the first frame update
    void Start()
    {
        
		
    }

    // Update is called once per frame
    void Update()
    {
        float mouseX = Input.GetAxis("Mouse X") * mouseSensitivity * Time.deltaTime;
		float mouseY = Input.GetAxis("mouse Y") * mouseSensitivity * Time.deltaTime;
		
		playerBody.Rotate(Vector3.up * mouseX);
    }
}

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I saved it, but that doesn’t let me play in the options or activate it in unity

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160876-untitled.png

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It stay like that and I don’t find a solution for it.
So I ask you the question because I can’t complete my work

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. ( I wrote with NotePad++ )

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You have 24 errors, look at your console, something else has a bunch of errors