dbus-binding-tool Unable to load "%s": Attribute "xmlns:tp" is invalid on <node> element in this context

[Alban Browaeys <prahal yahoo com>]

I got :
Unable to load "%s": Attribute "xmlns:tp" is invalid on <node> element
in this context
while the Makefile call dbus-binding-tool since
http://svn.gnome.org/viewvc/NetworkManager?view=revision&revision=3345

for example from NetworkManager/libnm-glib/ :
 dbus-binding-tool --prefix=nm_access_point --mode=glib-client
--output=nm-access-point-bindings.h ../introspection/nm-access-point.xml

How do you build NetworkManager to avoid this issue ?

Thanks
Alban