Error calling a django command

[cptx032]

I created a simple command that doesn't raises an error. But running ./manage.py maven my_command I got:

Traceback (most recent call last):
  File "./manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/home/rctech/.virtualenvs/pam/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
    utility.execute()
  File "/home/rctech/.virtualenvs/pam/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 359, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/rctech/.virtualenvs/pam/local/lib/python2.7/site-packages/django_maven/management/commands/maven.py", line 52, in run_from_argv
    parser = self.create_parser(argv[0], argv[2], subcommand_class)
  File "/home/rctech/.virtualenvs/pam/local/lib/python2.7/site-packages/django_maven/management/commands/maven.py", line 38, in create_parser
    if not self.use_argparse:
AttributeError: 'Command' object has no attribute 'use_argparse'
Sentry is attempting to send 1 pending error messages
Waiting up to 10 seconds

The sentry log is sent to the server but is an error of maven it self