When I use papyon to load all my contacts, I have this error :

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.5/papyon/service/SOAPService.py", line 198, in _response_handler
    handler(callback, errback, response, user_data)
  File "/usr/lib/pymodules/python2.5/papyon/service/AddressBook/ab.py", line 190, in _HandleABFindAllResponse
    callback[0](address_book, *callback[1:])
  File "/usr/lib/pymodules/python2.5/papyon/service/AddressBook/scenario/sync/initial_sync.py", line 57, in __ab_findall_callback
    self.__sync_callback()
  File "/usr/lib/pymodules/python2.5/papyon/service/AddressBook/scenario/sync/initial_sync.py", line 68, in __sync_callback
    self.callback(self.__ab_response, self.__membership_response)
  File "/usr/lib/pymodules/python2.5/papyon/service/AddressBook/scenario/base.py", line 37, in callback
    callback(*args)
  File "/usr/lib/pymodules/python2.5/papyon/service/AddressBook/address_book.py", line 235, in callback
    c = self.__build_contact(contact)
  File "/usr/lib/pymodules/python2.5/papyon/service/AddressBook/address_book.py", line 535, in __build_contact
    display_name.encode("utf-8"),
AttributeError: 'NoneType' object has no attribute 'encode'


I encounter this bug with amsn 2 and telepathy-butterfly.

As regards