please change your "Debug.log(........)" to "Debug.Log( .........)".
change your external scripting tool to visual studio in unity
( edit -> preferences -> Editor tools -> External script editor = visual studio / vs code)
using System. Collections;
using System. Collections.Generic;
using UnityEngine;
public class New8ehaviourScript : MononoBehaviour
// Start is called before the first frame update
{
void Start()
{
Debug. Log( "hello I am Amarjeet Kumar");
}
// Update is called once per frame
void Update()
{
}
}