Unable to build prerequisite module: Glib (0) Unable to build prerequisite module: Gtk2 (0) Unable to build prerequisite module: Gtk2-Ex-PopupWindow (0) Unable to build prerequisite module: Gtk2-Ex-Simple-List (0) Unable to build prerequisite module: Data-Dumper (0) Gtk2-Ex-ComboBox could not be built due to the above failed prerequisites.