is expected error

I can't figure out what's wrong with the code; i've copied directly from the tutorial and it's giving me the error above. Can anyone give me a hand?

 using UnityEngine;
 using System.Collections;
 
 namespace Completed
 {
     using System.Collections.Generic;       //Allows us to use Lists. 
     
 public class GameManager : MonoBehaviour
 {
     
     public static GameManager instance = null;              //Static instance of GameManager which allows it to be accessed by any other script.
     private BoardManager boardScript;                       //Store a reference to our BoardManager which will set up the level.
     private int level = 3;                                  //Current level number, expressed in game as "Day 1".
     
     //Awake is always called before any Start functions
     void Awake()
     {
         //Check if instance already exists
         if (instance == null)

             
             //if not, set instance to this
             instance = this;
         
         //If instance already exists and it's not this:
         else if (instance != this)
             
             //Then destroy this. This enforces our singleton pattern, meaning there can only ever be one instance of a GameManager.
             Destroy(gameObject);    
         
         //Sets this to not be destroyed when reloading scene
         DontDestroyOnLoad(gameObject);
         
         //Get a component reference to the attached BoardManager script
         boardScript = GetComponent<BoardManager>();
         
         //Call the InitGame function to initialize the first level 
         InitGame();
     }
     
     //Initializes the game for each level.
     void InitGame()
     {
         //Call the SetupScene function of the BoardManager script, pass it current level number.
         boardScript.SetupScene(level);
         
     }
     
     
     
     //Update is called every frame.
     void Update()
     {
         
     }
 }