CS5001. Does the program not contain a static "Main" method suitable for the entry point?

Question

.NET

program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication2
{
    static class Program
    {
        /// <summary>
        /// Главная точка входа для приложения.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

it is.

public Form1()
        {
            InitializeComponent();
        }

Answer 1

In the project properties, set the entry point
And yes, add public for the class and for the Main method