Gnome-shell won't run

[Onyeibo Oku <twohotis gmail com>]

I build Gnome-shell today after a jhbuild. Below is the error message I 
get when I run it:

./gnome-shell --replace
Gtk-Message: Failed to load module "pk-gtk-module": libpk-gtk-module.so: 
cannot open shared object file: No such file or directory
      JS LOG: GNOME Shell started at Sat Jan 01 2011 22:53:50 GMT+0100 
(WAT)

(mutter:14358): GdmUser-WARNING **: Unable to load CK history: no 
seat-id found

Hope this is not a major issue.  What should I do to get it fixed?

Regards

Oku, O