Traceback (most recent call last):


 "examples/demo_gcppubsub.py", line 96, in <module>

main()


 "examples/demo_gcppubsub.py", line 92, in main

start_subscriber(loop, trades.topic)


 "examples/demo_gcppubsub.py", line 71, in start_subscriber

keep_alive = client.subscribe(subscription_path, message_callback)
AttributeError: 'SubscriberClient' object has no attribute 'subscribe'

Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "C:\Users\Amin\anaconda3\envs\py38\lib\site-packages\cupy\__init__.py", line 57, in <module>

from cupy import fft
# NOQA


 "C:\Users\Amin\anaconda3\envs\py38\lib\site-packages\cupy\fft\__init__.py", line 1, in <module>

from cupy.fft._fft import fft
# NOQA


 "C:\Users\Amin\anaconda3\envs\py38\lib\site-packages\cupy\fft\_fft.py", line 9, in <module>

from cupy.fft import config


 "C:\Users\Amin\anaconda3\envs\py38\lib\site-packages\cupy\fft\config.py", line 13, in <module>

from cupy.fft._callback import get_current_callback_manager
# NOQA


 "cupy\fft\_callback.pyx", line 35, in init cupy.fft._callback
AttributeError: 'NoneType' object has no attribute 'split'
