// CS0072: `Child.OnFoo': cannot override because `ErrorCS0072.OnFoo()' is not an event // Line: 16 using System; class ErrorCS0072 { public delegate void FooHandler (); protected void OnFoo () {} } class Child : ErrorCS0072 { // We are trying to override a method with an event. protected override event FooHandler OnFoo; public static void Main () { } }