C# Error CS1534 – Overloaded binary operator ‘{0}’ takes two parameters

C# Error

CS1534 – Overloaded binary operator ‘{0}’ takes two parameters

Reason for the Error & Solution

Overloaded binary operator ‘operator’ takes two parameters

The definition of a binary must take two parameters.

The following sample generates CS1534:

// CS1534.cs  
class MyClass  
{  
   public static MyClass operator - (MyClass MC1, MyClass MC2, MyClass MC3)   // CS1534  
   // try the following line instead  
   // public static MyClass operator - (MyClass MC1, MyClass MC2)  
   {  
      return new MyClass();  
   }  
  
   public static int Main()  
   {  
      return 1;  
   }  
}