Visual C# Beginner Empty Project Help?

Question

I'm a beginner to Visual Studio, I can create Windows From Projects and Console Projects just fine, but I can't compile Empty Projects,

The steps I take are:

1. Create an Empty Project.
2. Add a class, add a reference to System and System.Windows.Forms

3. Put the following code in the class:

   using System;
   using System.Collections.Generic;
   using System.Linq;
   using System.Text;
   using System.Windows.Forms;
   
   namespace Circles
   {
       class Program
       {
           static void Main(string[] args)
           {
               MessageBox.Show("Hello World!");
   
           }
       }
   }
   

Then I hit compile, and it gives me this error:

Error 1 Program 'D:\C #\Projects\Circles\Circles\obj\x86\Debug\Circles.exe' does not contain a static 'Main' method suitable for an entry point Circles

The Properties build action is set to compile, but the Startup Object in the Project roperties is not set, is this causing the problem, if so what can I do?

EDIT: Question resolved see CharithJ's answer below. Thanks Guys.

Answer 1

You need to add the public access modifier to the class and the main method, and make main begin with an upper-case m:

public class Program
{
    public static void Main(string[] args)
    {
        MessageBox.Show("Hello World!");

    }
}

Edit: As per comments, neither public access modifier is actually required.

Answer 2

main method name should be Main

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Windows.Forms;

namespace Circles 
{ 
    public class Program 
    { 
        public static void Main(string[] args) 
        { 
            MessageBox.Show("Hello World!");
        }
   }
}