Error “Does not contain a static ”Main" Method suitable for an entry point [duplicate]

Answer 1

All C# programs need to contain the Main() method. Essentially this is where the program starts. The code you posted is just a small part of the entire application. You must have removed the location where main had been residing.

MSDN Article on Main

Updated for comments:

A new Windows Form App has a Program class that instantiates the form that you want.

    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
     }

Try copying that over to a new file called program.cs. Make sure that Form1 now points to the form you created in the applications.

Answer 2

Paste this into your class -- if you still get an error, you need to paste the entire class in question, not just a screen capture of the event handler for a button click.

static void Main(string[] args)
{
  //do nothing
}

Answer 3

The code you've posted is the click event for a button. A button is usually on a form, and the form must be initialized. If you create a Windows Forms Application it will create a file Program.cs that contains a Main method that starts your form.

When you start a program, the computer needs to know where to actually start running code, that's what the Main() method is for. It is required to run, and that's the error you are receiving.