Приставка.строку не работает,

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
​
namespace Lab4
{
    class Program
    {
        static void Main(string[] args)
​
        {
            SavingAccount aSavingAccount;
            List<savingaccount> accounts = new List<savingaccount>();
            while (true)
            {
                Console.Write("Please enter the account owner's name: ");
                string Owner = Console.ReadLine();
​
                if (Owner == "")
                    break;
​
                Console.Write("Please enter the initial deposit amount for the saving account: ");
                string entry1 = Console.ReadLine();
                double InitialDepositAmount = double.Parse(entry1);
               
                Console.Write("Please enter the monthly deposit amount for the saving account: ");
                string entry2 = Console.ReadLine();
                double MonthlyDepositAmount = double.Parse(entry2);
​
                aSavingAccount = new SavingAccount(Owner, InitialDepositAmount);
                aSavingAccount.MonthlyDepositAmount = MonthlyDepositAmount;
​
                accounts.Add(aSavingAccount);
​
            } 
​
            foreach (SavingAccount account in accounts)
            {
                for(int i = 0; i < 6; i++)
                {
                    account.Withdraw(SavingAccount.MonthlyFee);
                    account.Deposit(account.MonthlyDepositAmount);
                    account.Deposit(SavingAccount.MonthlyInterestRate * account.Balance);
                }
                Console.WriteLine("After 6 months, {0}'s account (#{1}), has a balance of: {2:C}", account.Owner, account.AccountNumber, account.Balance);
            }
            
        }
    }

Что я уже пробовал:

Я попытался запустить в другом окне visual studio, но он показывает все ошибки красной строки для полного кода строки

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