C# Error CS1558 – ‘{0}’ does not have a suitable static ‘Main’ method

C# Error

CS1558 – ‘{0}’ does not have a suitable static ‘Main’ method

Reason for the Error & Solution

‘class’ does not have a suitable static Main method

The compiler option specified a class in which to look for a Main method. However, the method was not defined correctly.

The following example generates CS1558 because of invalid return type.

// CS1558.cs  
// compile with: /main:MyNamespace.MyClass  
  
namespace MyNamespace  
{  
   public class MyClass  
   {  
      public static float Main()
      {  
         return 0.0; // CS1558 because the return type is a float.  
      }  
   }  
}