Traceback (most recent call last):


 "demo_yolo3_deepsort.py", line 68, in <module>

det.detect()


 "demo_yolo3_deepsort.py", line 42, in detect

outputs = self.deepsort.update(bbox_xywh, cls_conf, im)


 "/home/gongyuan/Downloads/DEMO/deep_sort_pytorch-master/deep_sort.py", line 25, in update

features = self._get_features(bbox_xywh, ori_img)


 "/home/gongyuan/Downloads/DEMO/deep_sort_pytorch-master/deep_sort.py", line 66, in _get_features

features = np.stack(features, axis=0)


 "/home/gongyuan/anaconda3/envs/py3/lib/python3.6/site-packages/numpy/core/shape_base.py", line 349, in stack

raise ValueError('need at least one array to stack')
ValueError: need at least one array to stack


Traceback (most recent call last):


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


 "C:\Users\SUBAS\AppData\Local\Temp\pip-install-s73v86dd\scikits.learn\setup.py", line 97, in <module>

'Operating System :: MacOS'


 "c:\users\subas\newenv\lib\site-packages\numpy\distutils\core.py", line 135, in setup

config = configuration()


 "C:\Users\SUBAS\AppData\Local\Temp\pip-install-s73v86dd\scikits.learn\setup.py", line 34, in configuration

config.add_subpackage('scikits.learn')


 "c:\users\subas\newenv\lib\site-packages\numpy\distutils\misc_util.py", line 1024, in add_subpackage

caller_level = 2)


 "c:\users\subas\newenv\lib\site-packages\numpy\distutils\misc_util.py", line 993, in get_subpackage

caller_level = caller_level + 1)


 "c:\users\subas\newenv\lib\site-packages\numpy\distutils\misc_util.py", line 930, in _get_configuration_from_setup_py

config = setup_module.configuration(*args)


 "scikits\learn\setup.py", line 10, in configuration

config = Configuration('learn', parent_package, top_path)


 "c:\users\subas\newenv\lib\site-packages\numpy\distutils\misc_util.py", line 768, in __init__

raise ValueError("%r is not a directory" % (package_path,))

ValueError: 'build\\py3k\\scikits\\learn' is not a directory
