I am trying to use GetEnumerable with a Business Object in a web page like this:

foreach ( Serv_ClosedBO mBO in Serv_Closed.GetEnumerable())

but when I try to build the web site, I get an error that says:

" The type of namespace name 'Serv_CLosedBO' could not be found (are you missing  a using directive or an assembly reference?)  "

The BO is declared in the corresponding applicationbasepage,

 Can I use GetEnumerable in web pages? what am I missing?