Catching Exception Refuses to Compile

using System;

namespace Treehouse.CodeChallenges {
    class Program {
        static void Main() {
           int count = 0;
            while (true) {
               try { 
                    Console.WriteLine("Enter the number of times to print \"Yay!\": ");
                    count = Console.ReadLine();
                    //int count = Convert.ToInt32(c);
                    if(count <= 0) {
                        Console.WriteLine("You must enter a whole number.");
                        continue;
                    }
                   if (count == null){
                        Console.WriteLine("You must enter a whole number.");
                        continue;                    
                   }

                    int total = 0;
                    while (total < count) {
                        Console.WriteLine("Yay!");
                        total = total + 1;
                    }
                   break;
                }   //try
                catch(FormatException) {
                    Console.WriteLine("You must enter a whole number.");
                    continue;
                }//catch
            }//while
        }  //Main
    }//class
}//namespaces