Gwibber does not start and showing AttributeError: 'module' object has no attribute 'WebView'

[Maverick JS]

Distributor ID: Ubuntu
Description: Ubuntu natty (development branch)
Release: 11.04
Codename: natty
Linux Kernel version: 2.6.37-7-generic

When I opened gwibber it does not start and outputting this in the terminal:

maverick@natty:~$ 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'

It does not start with either the pre-installed gwibber on natty or the current I tried using;

maverick@natty:~$ apt-cache policy gwibber
gwibber:
  Installed: 2.91.2~bzr934-0ubuntu1~daily1
  Candidate: 2.91.2~bzr934-0ubuntu1~daily1
  Version table:
 *** 2.91.2~bzr934-0ubuntu1~daily1 0
        500 http://ppa.launchpad.net/gwibber-daily/ppa/ubuntu/ natty/main i386 Packages
        100 /var/lib/dpkg/status
     2.91.1-0ubuntu2 0
        500 http://archive.ubuntu.com/ubuntu/ natty/main i386 Packages

Following attachment contains the "apt-cache show gwibber" information