Gwibber fails to run

[angel orna]

Binary package hint: gwibber

Ubuntu 11.04
 Instalados: 2.91.2-0ubuntu1
angel@angel-laptop:~$ gwibber
Traceback (most recent call last):
  File "/usr/bin/gwibber", line 55, in <module>
    from gwibber import client
  File "/usr/lib/python2.7/dist-packages/gwibber/client.py", line 3, in <module>
    import gtk, gobject, gwui, util, actions, json, gconf
  File "/usr/lib/python2.7/dist-packages/gwibber/gwui.py", line 208, in <module>
    class WebUi(webkit.WebView):
AttributeError: 'module' object has no attribute 'WebView'

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gwibber 2.91.2-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.37-9.22-generic 2.6.37-rc5
Uname: Linux 2.6.37-9-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Wed Dec 15 20:49:20 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=es_ES:es:en_GB:en
 LANG=es_ES.UTF-8
 LC_MESSAGES=es_ES.utf8
 SHELL=/bin/bash
SourcePackage: gwibber