如何解决Python 3.6.5中的错误“ [WARN：0]终止异步回调”

Question

当我在pycharm中运行github项目时出现错误

[ WARN:0] terminating async callback

我的代码：

import cv2
video_capture = cv2.VideoCapture(0)

def nolight():
    return video_capture.read()

video_capture.release()
cv2.destroyAllWindows()