TypeError: can only concatenate tuple (not "NoneType") to tuple

[dapaojiang]

Traceback (most recent call last): File "/Users/jianghaibo/Python/resource-ret-backend/manage.py", line 15, in execute_from_command_line(sys.argv) File "/Users/jianghaibo/.local/share/virtualenvs/resource-ret-backend-HZTWbhOI/lib/python3.6/site-packages/django/core/management/init.py", line 381, in execute_from_command_line utility.execute() File "/Users/jianghaibo/.local/share/virtualenvs/resource-ret-backend-HZTWbhOI/lib/python3.6/site-packages/django/core/management/init.py", line 375, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/Users/jianghaibo/.local/share/virtualenvs/resource-ret-backend-HZTWbhOI/lib/python3.6/site-packages/django/core/management/init.py", line 224, in fetch_command klass = load_command_class(app_name, subcommand) File "/Users/jianghaibo/.local/share/virtualenvs/resource-ret-backend-HZTWbhOI/lib/python3.6/site-packages/django/core/management/init.py", line 36, in load_command_class module = import_module('%s.management.commands.%s' % (app_name, name)) File "/Users/jianghaibo/.local/share/virtualenvs/resource-ret-backend-HZTWbhOI/lib/python3.6/importlib/init.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "", line 994, in _gcd_import File "", line 971, in _find_and_load File "", line 955, in _find_and_load_unlocked File "", line 665, in _load_unlocked File "", line 678, in exec_module File "", line 219, in _call_with_frames_removed File "/Users/jianghaibo/.local/share/virtualenvs/resource-ret-backend-HZTWbhOI/lib/python3.6/site-packages/djcelery/management/commands/celery.py", line 11, in class Command(CeleryCommand): File "/Users/jianghaibo/.local/share/virtualenvs/resource-ret-backend-HZTWbhOI/lib/python3.6/site-packages/djcelery/management/commands/celery.py", line 15, in Command base.get_options() + TypeError: can only concatenate tuple (not "NoneType") to tuple

Process finished with exit code 1

I got an error when i want to start celery by python manage.py celery -l info in django.

[maxmalysh]

This is a duplicate of https://github.com/celery/django-celery/issues/573.

Currently, the latest version in PyPi is 3.3.0 and it's broken. It won't even start. @auvipy has fixed the issue, but didn't upload the fixed version yet.

@auvipy could you upload the latest version from master to PyPi, please? Many thanks