eric not working on ubuntu 9.04

[bvidinli]

any idea ?
here is output:

bvidinli at bvidinli-yenihdd:~$ eric
Warning: translation file 'qt_tr_TR'could not be loaded.
Using default.
Warning: translation file 'qscintilla_tr_TR'could not be loaded.
Using default.
Exception RuntimeError: 'maximum recursion depth exceeded while
calling a Python object' in <type 'exceptions.AttributeError'> ignored
Exception RuntimeError: 'maximum recursion depth exceeded in
__subclasscheck__' in <type 'exceptions.AttributeError'> ignored
An unhandled exception occurred. Please report the problem
using the error reporting dialog or via email to <eric4-bugs at die-offenbachs.de>.
A log has been written to "/home/bvidinli/.eric4/eric4_error.log".

Error information:
--------------------------------------------------------------------------------
2009-05-02, 23:42:05
--------------------------------------------------------------------------------
<type 'exceptions.ImportError'>:
cannot import name walk
--------------------------------------------------------------------------------
  File "/usr/share/eric/modules/eric4.py", line 250, in <module>
    main()
  File "/usr/share/eric/modules/eric4.py", line 229, in main
    from UI.UserInterface import UserInterface
  File "/usr/share/eric/modules/UI/UserInterface.py", line 66, in <module>
    from EmailDialog import EmailDialog
  File "/usr/share/eric/modules/UI/EmailDialog.py", line 28, in <module>
    from email.MIMEBase import MIMEBase
  File "/usr/lib/python2.6/email/__init__.py", line 79, in __getattr__
    __import__(self.__name__)
  File "/usr/lib/python2.6/email/mime/base.py", line 9, in <module>
    from email import message
  File "/usr/lib/python2.6/email/message.py", line 90, in <module>
    class Message:
  File "/usr/lib/python2.6/email/message.py", line 790, in Message
    from email.Iterators import walk

--------------------------------------------------------------------------------
Version Numbers:
  Python 2.6.2
  KDE 4.2.2
  PyKDE 4.0.2
  Qt 4.5.0
  PyQt4 4.4.4
  sip sip version not available
  QScintilla 2.3.2
  eric4 4.3.0 (r2852)

Platform: linux2
2.6.2 (release26-maint, Apr 19 2009, 01:56:41)
[GCC 4.3.3]
--------------------------------------------------------------------------------
Distribution Info:
  /etc/lsb-release
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=9.04
  DISTRIB_CODENAME=jaunty
  DISTRIB_DESCRIPTION="Ubuntu 9.04"
bvidinli at bvidinli-yenihdd:~$