我正在使用下面的代码来运行代码，它显示弹出窗口以允许摄像头现在我遇到以下错误

Question

import cv2

cap = cv2.VideoCapture(1)
cap.set(3, 1280)
cap.set(4, 720)

while True:

success, img = cap.read()
cv2.imshow("Face Attandance", img)
cv2.waitkey(1)

那是错误：

OpenCV: out device of bound (0-0): 1

OpenCV：相机未能正确初始化！回溯（最近 最后调用）：文件 “/Users/virendradekate/PycharmProjects/pythonProject2/main.py”，行 9、在 cv2.imshow("Face Attandance", img) cv2.error: OpenCV(4.5.4-dev) /private/var/folders/b7/g6qfbypj0tq32j5_trjh516r0000gn/T/pip-req-build-yhobjvo0/opencv/modules/highgui/src/window.cpp:1006: 错误：（-215：断言失败）size.width>0 && size.height>0 in 函数'imshow'