Traceback (most recent call last):


 "/home/jordi/Documents/vinissimus/checkout/env/lib/python3.7/site-packages/uvicorn/protocols/http/httptools_impl.py", line 368, in run_asgi

result = await app(self.scope, self.receive, self.send)


 "/home/jordi/Documents/vinissimus/checkout/env/lib/python3.7/site-packages/uvicorn/middleware/asgi2.py", line 6, in __call__

instance = self.app(scope)
TypeError: 'NoneType' object is not callable

Traceback (most recent call last):


 "C:\Users\sriki\Miniconda3\Scripts\ludwig-script.py", line 11, in <module>

load_entry_point('ludwig==0.2.1', 'console_scripts', 'ludwig')()


 "C:\Users\sriki\Miniconda3\lib\site-packages\ludwig-0.2.1-py3.7.egg\ludwig\cli.py", line 108, in main


 "C:\Users\sriki\Miniconda3\lib\site-packages\ludwig-0.2.1-py3.7.egg\ludwig\cli.py", line 64, in __init__


 "C:\Users\sriki\Miniconda3\lib\site-packages\ludwig-0.2.1-py3.7.egg\ludwig\cli.py", line 94, in visualize


 "C:\Users\sriki\Miniconda3\lib\site-packages\ludwig-0.2.1-py3.7.egg\ludwig\visualize.py", line 3119, in cli


 "C:\Users\sriki\Miniconda3\lib\site-packages\ludwig-0.2.1-py3.7.egg\ludwig\visualize.py", line 650, in confusion_matrix_cli



 "C:\Users\sriki\Miniconda3\lib\site-packages\ludwig-0.2.1-py3.7.egg\ludwig\utils\data_utils.py", line 76, in load_json
TypeError: expected str, bytes or os.PathLike object, not NoneType
