[gtkmm] Glib-GObject-Warning invalid cast null to unknown error

["Vishal Modak" <whizvish80 rediffmail com>]

hi

i am trying to create a static executable using gtkmm-2.0.2, 
gtk-2.0.6, glib-2.0.9, libsigc++-1.2

the static build gave no errors...but when i run the program on my 
machine.. locally...it gives me these error

(process 6231): GLIB-Object-Warning ** invalid cast from `(null)` 
to `<unknown>`

(process 6231): GLIB-Object-Warning ** file gobject.c line 1325 
(g_object_set_qdata); assertion `G_IS_OBJECT` (object) failed

(process 6231): GLIB-Object-Warning ** invalid cast from `(null)` 
to `<unknown>`

(process 6231): GLIB-Object-Warning ** file gobject.c line 1358 
(g_object_set_qdata_full); assertion `G_IS_OBJECT` (object) 
failed

(process 6231): GLIB-Object-Warning ** invalid cast from `(null)` 
to `<unknown>`

(process 6231): GLIB-Object-Warning ** file gobject.c line 1347 
(g_object_steal_qdata); assertion `G_IS_OBJECT` (object) failed

it looks like i am passing null pointer..? how do i know 
where..?
can anybody what exactly this means..?
what should i do to solve this






Regards
Vishal Modak
Dept. of Computer and Information Science
Univ. Of South Alabama
Mobile, AL