C#

Error 1 The type or namespace name 'Form1' could not be found (are you missing a using directive or an assembly reference?)

using System;
using System.Windows.Forms;
using SKYPE4COMLib; // Our COM library

namespace SkypeBing
{
    public partial class Form1 : Form
    {
        private Skype skype;
        private const string trigger = "!"; // Say !help
        private const string nick = "BOT";
 
        public Form1()
        {
            InitializeComponent();
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            skype = new Skype();
            // Use skype protocol version 7 
            skype.Attach(7, false);
            // Listen 
            skype.MessageStatus +=
              new _ISkypeEvents_MessageStatusEventHandler(skype_MessageStatus);
        }
        private void skype_MessageStatus(ChatMessage msg,
                     TChatMessageStatus status)
        {
 
                // Remove trigger string and make lower case
                string command = msg.Body.Remove(0, trigger.Length).ToLower();
 
                // Send processed message back to skype chat window
                skype.SendMessage(msg.Sender.Handle, nick +
                      " Says: " + ProcessCommand(command));
            
        }
 
        private string ProcessCommand(string str)
        {
            string result;
            switch (str)
            {
                case "uli":
                    result = "http://www.youtube.com/watch?v=VfvBQMqCZw8";
                    break;
 
                default:
                    result = "Uliuli";
                    break;
            }
 
            return result;
        }
    }
}

Error   1   The type or namespace name 'Form1' could not be found (are you missing a using directive or an assembly reference?) C:\Users\Topsu\Documents\Visual Studio 2012\Projects\Skaip\Skaip\Program.cs 19  33  Skaip