python3 usb_camera.py -c 0报错

[gdnight]

[0]
Exception in thread Thread-1:
Traceback (most recent call last):
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/threading.py", line 917, in _bootstrap_inner
self.run()
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/threading.py", line 865, in run
self._target(*self._args, **self._kwargs)
File "usb_camera.py", line 138, in
Process(target=lambda: asyncio.run(embedding_loop(preload))).start()
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/asyncio/runners.py", line 43, in run
return loop.run_until_complete(main)
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/asyncio/base_events.py", line 568, in run_until_complete
return future.result()
File "usb_camera.py", line 57, in embedding_loop
embedding = face_embedding.EmbeddingModel(preload)
File "/home/fire/Desktop/experiment/ArcFace-Multiplex-Recognition-master/face_embedding.py", line 39, in init
self.model = get_model(ctx, image_size, args.arcface_model, 'fc1')
File "/home/fire/Desktop/experiment/ArcFace-Multiplex-Recognition-master/face_embedding.py", line 19, in get_model
assert len(_vec) == 2
AssertionError

Exception in thread Thread-3:
Traceback (most recent call last):
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/threading.py", line 917, in _bootstrap_inner
self.run()
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/threading.py", line 865, in run
self._target(*self._args, **self._kwargs)
File "usb_camera.py", line 140, in
Process(target=lambda: asyncio.run(upload_loop())).start()
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/asyncio/runners.py", line 43, in run
return loop.run_until_complete(main)
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/asyncio/base_events.py", line 568, in run_until_complete
return future.result()
File "usb_camera.py", line 17, in upload_loop
sio = socketio.AsyncClient()
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/site-packages/socketio/client.py", line 97, in init
self.eio = self._engineio_client_class()(**engineio_options)
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/site-packages/engineio/client.py", line 82, in init
signal_handler)
File "/home/fire/anaconda3/envs/recognition/lib/python3.7/signal.py", line 47, in signal
handler = _signal.signal(_enum_to_int(signalnum), _enum_to_int(handler))
ValueError: signal only works in main thread

[14:56:07] src/nnvm/legacy_json_util.cc:209: Loading symbol saved by previous version v1.4.1. Attempting to upgrade...
[14:56:07] src/nnvm/legacy_json_util.cc:217: Symbol successfully upgraded!
[14:56:08] src/operator/nn/./cudnn/./cudnn_algoreg-inl.h:97: Running performance tests to find the best convolution algorithm, this can take a while... (set the environment variable MXNET_CUDNN_AUTOTUNE_DEFAULT to 0 to disable)
Detection cost: 7.369254212000669
然后一直卡在这