what are my compiler errors?

using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {
        static void Main()
        {
            Console.Write("Enter the number of times to print \"Yay!\": ");

            var entry = Console.ReadLine();

            if (entry == double.Parse(entry))
              {
                keepGoing = false;
              }
            else
            {
                try
                {

                  var number = int.Parse(entry);
                  var go = 0;

                  while (go ++< number)
                  {
                   Console.WriteLine("Yay!");
                  }  
                } 
              }
             catch(FormatException)         
              {
                Console.WriteLine("You must enter a whole number.");
                continue;

              }
        }
    }
}