Traceback (most recent call last): File "/usr/local/bin/celery", line 11, in <module> sys.exit(main()) File "/usr/local/lib/python3.5/site-packages/celery/__main__.py", line 14, in main _main() File "/usr/local/lib/python3.5/site-packages/celery/bin/celery.py", line 326, in main cmd.execute_from_commandline(argv) File "/usr/local/lib/python3.5/site-packages/celery/bin/celery.py", line 488, in execute_from_commandline super(CeleryCommand, self).execute_from_commandline(argv))) File "/usr/local/lib/python3.5/site-packages/celery/bin/base.py", line 281, in execute_from_commandline return self.handle_argv(self.prog_name, argv[1:]) File "/usr/local/lib/python3.5/site-packages/celery/bin/celery.py", line 480, in handle_argv return self.execute(command, argv) File "/usr/local/lib/python3.5/site-packages/celery/bin/celery.py", line 412, in execute ).run_from_argv(self.prog_name, argv[1:], command=argv[0]) File "/usr/local/lib/python3.5/site-packages/celery/bin/worker.py", line 221, in run_from_argv return self(*args, **options) File "/usr/local/lib/python3.5/site-packages/celery/bin/base.py", line 244, in __call__ ret = self.run(*args, **kwargs) File "/usr/local/lib/python3.5/site-packages/celery/bin/worker.py", line 255, in run **kwargs) File "/usr/local/lib/python3.5/site-packages/celery/worker/worker.py", line 99, in __init__ self.setup_instance(**self.prepare_args(**kwargs)) File "/usr/local/lib/python3.5/site-packages/celery/worker/worker.py", line 122, in setup_instance self.should_use_eventloop() if use_eventloop is None File "/usr/local/lib/python3.5/site-packages/celery/worker/worker.py", line 241, in should_use_eventloop self._conninfo.transport.implements.async and File "/usr/local/lib/python3.5/site-packages/kombu/transport/base.py", line 125, in __getattr__ raise AttributeError(key) AttributeError: async