gursimran@debian:~/gsoc/devel$ vala-gen-introspect gtk+-3.0 gtk+-3.0
In file included from <stdin>:1:0:
/opt/gnome/include/gtk-3.0/gdk/gdkrectangle.h:29:2: error: #error "Only <gdk/gdk.h> can be included directly."
In file included from /opt/gnome/include/gtk-3.0/gdk/gdkrectangle.h:32:0,
                 from <stdin>:1:
/opt/gnome/include/gtk-3.0/gdk/gdktypes.h:29:2: error: #error "Only <gdk/gdk.h> can be included directly."
In file included from /opt/gnome/include/gtk-3.0/gdk/gdktypes.h:44:0,
                 from /opt/gnome/include/gtk-3.0/gdk/gdkrectangle.h:32,
                 from <stdin>:1:
/opt/gnome/include/gtk-3.0/gdk/gdkconfig.h:10:2: error: #error "Only <gdk/gdk.h> can be included directly."
In file included from <stdin>:2:0:
/opt/gnome/include/gtk-3.0/gdk/gdkframetimings.h:19:2: error: #error "Only <gdk/gdk.h> can be included directly."
In file included from /opt/gnome/include/gtk-3.0/gdk/gdkframetimings.h:26:0,
                 from <stdin>:2:
/opt/gnome/include/gtk-3.0/gdk/gdkversionmacros.h:21:2: error: #error "Only <gdk/gdk.h> can be included directly."
In file included from <stdin>:3:0:
/opt/gnome/include/gtk-3.0/gdk/gdkselection.h:29:2: error: #error "Only <gdk/gdk.h> can be included directly."
In file included from <stdin>:10:0:
/opt/gnome/include/gtk-3.0/gdk/gdkversionmacros.h:21:2: error: #error "Only <gdk/gdk.h> can be included directly."
In file included from <stdin>:12:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11devicemanager.h:22:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:13:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11window.h:29:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:14:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11applaunchcontext.h:22:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:15:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11cursor.h:29:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:16:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11dnd.h:22:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:17:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11selection.h:29:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:18:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11visual.h:29:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:20:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11screen.h:29:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:22:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11device.h:22:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:24:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11property.h:29:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:25:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11displaymanager.h:22:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:26:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11display.h:29:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:27:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11utils.h:29:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:28:0:
/opt/gnome/include/gtk-3.0/gdk/x11/gdkx11keys.h:22:2: error: #error "Only <gdk/gdkx.h> can be included directly."
In file included from <stdin>:34:0:
/opt/gnome/include/gtk-3.0/gdk/gdkframeclock.h:28:2: error: #error "Only <gdk/gdk.h> can be included directly."
In file included from <stdin>:46:0:
/opt/gnome/include/gtk-3.0/gdk/wayland/gdkwaylanddisplaymanager.h:29:2: error: #error "Only <gdk/gdkwayland.h> can be included directly."
In file included from <stdin>:47:0:
/opt/gnome/include/gtk-3.0/gdk/wayland/gdkwaylanddisplay.h:22:2: error: #error "Only <gdk/gdkwayland.h> can be included directly."
In file included from <stdin>:48:0:
/opt/gnome/include/gtk-3.0/gdk/wayland/gdkwaylandselection.h:29:2: error: #error "Only <gdk/gdkwayland.h> can be included directly."
In file included from <stdin>:49:0:
/opt/gnome/include/gtk-3.0/gdk/wayland/gdkwaylanddevice.h:22:2: error: #error "Only <gdk/gdkwayland.h> can be included directly."
In file included from <stdin>:50:0:
/opt/gnome/include/gtk-3.0/gdk/wayland/gdkwaylandwindow.h:22:2: error: #error "Only <gdk/gdkwayland.h> can be included directly."
In file included from <stdin>:54:0:
/opt/gnome/include/gtk-3.0/gdk/gdkenumtypes.h:5:2: error: #error "Only <gdk/gdk.h> can be included directly."
In file included from <stdin>:59:0:
/opt/gnome/include/gtk-3.0/unix-print/gtk/gtkpagesetupunixdialog.h:22:2: error: #error "Only <gtk/gtkunixprint.h> can be included directly."
In file included from <stdin>:60:0:
/opt/gnome/include/gtk-3.0/unix-print/gtk/gtkunixprint.h:22:40: fatal error: gtk/gtkpagesetupunixdialog.h: No such file or directory
compilation terminated.

** (gen-introspect-0.16:26396): ERROR **: cpp returned error code: 256

Trace/breakpoint trap