-// cs0657-14.cs: `param' is not a valid attribute location for this declaration. Valid attribute locations for this declaration are `event, field, method'
-// Line : 8
+// CS0657: `param' is not a valid attribute location for this declaration. Valid attribute locations for this declaration are `event, field, method'. All attributes in this section will be ignored
+// Line: 9
+// Compiler options: -warnaserror
using System;