django-haystack 1.4 about xapian-haystack HOT 5 CLOSED

Traceback (most recent call last):
  File "manage.py", line 40, in <module>
    execute_from_command_line(sys.argv)
  File "\Python2.7\lib\site-packages\django\core\management\__init__.py", line 353, in execute_from_command_line
    utility.execute()
  File "\Python2.7\lib\site-packages\django\core\management\__init__.py", line 345, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "\Python2.7\lib\site-packages\django\core\management\base.py", line 348, in run_from_argv
    self.execute(*args, **cmd_options)
  File "\Python2.7\lib\site-packages\django\core\management\base.py", line 399, in execute
    output = self.handle(*args, **options)
  File "\pyenv\Lib\site-packages\haystack\management\commands\update_index.py", line 214, in handle
    self.update_backend(label, using)
  File "\pyenv\Lib\site-packages\haystack\management\commands\update_index.py", line 257, in update_backend
    commit=self.commit, max_retries=self.max_retries)
  File "\pyenv\Lib\site-packages\haystack\management\commands\update_index.py", line 84, in do_update
    backend.update(index, current_qs, commit=commit)
TypeError: update() got an unexpected keyword argument 'commit'