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Python 3 Opencv set up problem: "cannot find reference 'VideoCapture' in __init__.py" on Pycharm IDE

I am trying to install OpenCv and run some code on PyCharm on Mac.

I have installed the opencv package as well as numpy but when I run the code this error shows up on Pycharm IDE: "cannot find reference 'VideoCapture' in __init__.py"

In fact, every time I write example_variable = cv2. , PyCharm is not giving me any option to autocomplete with a function attached to cv2. Why is this happening?

Here's the code I am trying to run. I tried also running other codes but the same error displays:

import cv2
import numpy as np
cap = cv2.VideoCapture()
while True:
    ret, frame = cap.read()
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    cv2.imshow('frame',gray)
    if cv2.waitKey(1) & OxFF == ord('q'):
        break
cap.release
cv2.destroyAllWindows()
Any tips on how to run this code smoothly? The end goal is to have my front webcam capture live video and react to it.
                Can you provide information on how you installed OpenCV? Because there are various ways of which some are working only with python 2 and causing those kind of problems for python 3. Especially when using the pip version of OpenCV (opencv-python) which works I guess only with python 2 correctly.
– malliaridis
                Jul 14, 2020 at 15:56
Right-click on source Directory
Mark Directory as -> source root
File --> Invalidate Caches / Restart... -> Invalidate and Restart
In your IDE, go to settings -> preferences -> django
Ensure your Root directory, your settings.py and your manage.py are in the right place
if you are in Django.
After all that, you can also delete the .idea folder in your root directory and restart the IDE.
I agree with "from cv2 import cv2"
there have an another way to solve problems:
** Do Not Use Pip Install **
I try to use download opencv_python-4.5.5.62-cp36-abi3-win_amd64.whl file and then manual double click to install
wait a minute, Pycharm IDE successfully Show code completion.
by the way,can your code run?
if code can run, above will help you a bit.
and your path(project python) should be Englisgh ; not be Chinese or other language.
                Your answer could be improved with additional supporting information. Please edit to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center.
– Community
                Oct 24, 2022 at 5:33
It worked for me by the following method:
from the directory /xx/.conda/envs/mmrot/lib/python3.8/site-packages/cv2/ copy cv2.abi3.so file to the parent dir /xx/.conda/envs/mmrot/lib/python3.8/site-packages/
Even though this doesn't make the reason clear, but it does worked.
        
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