Help running gnome-shell from git on an existing gnome shell(fedora 15)

[Vamsi Krishna Brahmajosyula <vamsikrishna brahmajosyula gmail com>]

Hello,

I use Fedora 15 aplha  and I built gnome shell from git sources using jhbuild. 

when i tried gnome-shell --replace 

i get this 

/gnome-shell/install/bin/gnome-shell --replace
Gtk-Message: Failed to load module "pk-gtk-module"
Window manager warning: Log level 16: Another compositing manager is running on screen 0
Window manager warning: Log level 8: add_win: assertion `info != NULL' failed
Window manager warning: Log level 8: meta_compositor_sync_window_geometry: assertion `info' failed
Window manager warning: Log level 8: add_win: assertion `info != NULL' failed
Window manager warning: Log level 8: meta_compositor_sync_window_geometry: assertion `info' failed
Window manager warning: Log level 8: add_win: assertion `info != NULL' failed
Window manager warning: Log level 8: meta_compositor_sync_window_geometry: assertion `info' failed
Window manager warning: Log level 8: add_win: assertion `info != NULL' failed
Window manager warning: Log level 8: meta_compositor_sync_window_geometry: assertion `info' failed
Window manager warning: Log level 8: add_win: assertion `info != NULL' failed
Window manager warning: Log level 8: meta_compositor_sync_window_geometry: assertion `info' failed
Window manager warning: Log level 8: add_win: assertion `info != NULL' failed
Shell killed with signal 11

any suggestions? I think its referring to mutter running n screen 0. I am not sure how to fix this. Should i kill mutter first(which would crash the existing shell) ? 


thanks

--vamsi