mcs/errors/cs0114.cs

   1 // CS0114: `Y.XX()' hides inherited member `X.XX()'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword
   2 // Line: 10
   3 // Compiler options: -warnaserror -warn:2
   4
   5 public abstract class X {
   6         public abstract void XX ();
   7 }
   8
   9 class Y : X {
  10         void XX () {}
  11 }