Celery raises ValueError: not enough values to unpack

Question

Trying to run simple example with Celery and receiving an exception. RabbitMQ started in a Docker, also tried to start it locally. Celery works on a local Windows host

from celery import Celery

app = Celery('tasks', broker='amqp://192.168.99.100:32774')

@app.task()
def hello():
    print('hello')


if __name__ == '__main__':
    hello.delay()

Excerpt of my error text:

[2017-08-18 00:01:08,632: ERROR/MainProcess] Task handler raised error: ValueError('not enough values to unpack (expected 3, got 0)',)
Traceback (most recent call last):                                              
    File "c:\users\user\celenv\lib\site-packages\billiard\pool.py", line 358, in workloop                        
        result = (True, prepare_result(fun(*args, **kwargs)))                                  
    File "c:\users\user\celenv\lib\site-packages\celery\app\trace.py", line 525, in _fast_trace_task
        tasks, accept, hostname = _loc
ValueError: not enough values to unpack (expected 3, got 0)

Answer 1

Which celery version? As far as I remember celery isn't supported in windows since celery 4