C# Error CS2007 – Unrecognized option: ‘{0}’

C# Error

CS2007 – Unrecognized option: ‘{0}’

Reason for the Error & Solution

Unrecognized command-line option: ‘option’

The compiler was passed a string that was not a , even though it began with a forward slash (/).

The following sample generates CS2007:

// CS2007.cs  
// compile with: /recur  
// CS2007 expected  
class x  
{  
   public static void Main() {}  
}