Compiler Error CS0555

User-defined operator cannot take an object of the enclosing type and convert to an object of the enclosing type

User-defined conversions to values of the enclosing class are not allowed; you do not need such an operator.

The following sample generates CS0555:

// CS0555.cs
public class MyClass
{
   // delete the following operator to resolve this CS0555
   public static implicit operator MyClass(MyClass aa)   // CS0555
   {
      return new MyClass();
   }

   public static void Main()
   {
   }
}