Problems building gnome shell

[Eugene Gorodinsky <e gorodinsky gmail com>]

Tried to build the gnome-shell to test it out and encountered a
problem. The gir-repository module doesn't build. Here's the part that
errors out:

WARNING: DELETING node GhostPad: "Failed to resolve GType name: 'GstProxyPad'"
Traceback (most recent call last):
  File "/home/eugene/gnome-shell/install/bin/g-ir-scanner", line 334,
in <module>
    sys.exit(main(sys.argv))
  File "/home/eugene/gnome-shell/install/bin/g-ir-scanner", line 315, in main
    namespace = glibtransformer.parse()
  File "/home/eugene/gnome-shell/install/lib/python2.5/site-packages/giscanner/glibtransformer.py",
line 144, in parse
    self._resolve_node(node)
  File "/home/eugene/gnome-shell/install/lib/python2.5/site-packages/giscanner/glibtransformer.py",
line 685, in _resolve_node
    self._resolve_function_toplevel(node)
  File "/home/eugene/gnome-shell/install/lib/python2.5/site-packages/giscanner/glibtransformer.py",
line 704, in _resolve_function_toplevel
    newfunc = parser(func)
  File "/home/eugene/gnome-shell/install/lib/python2.5/site-packages/giscanner/glibtransformer.py",
line 367, in _parse_constructor
    return self._parse_method_common(func, False)
  File "/home/eugene/gnome-shell/install/lib/python2.5/site-packages/giscanner/glibtransformer.py",
line 451, in _parse_method_common
    klass.constructors.append(func)
AttributeError: 'NoneType' object has no attribute 'constructors'


Any help would be appreciated :)