VIDEOIO ERROR: V4L: can't open camera by index 0 · Issue #149 · google/mediapipe · GitHub
Camarray Quad Camera Depth Mapping OpenCV - Raspberry Pi Cameras - Arducam Camera Support Forum
VideoCapture can't open camera by index · Issue #19527 · opencv/opencv · GitHub
WARN:0] VIDEOIO(V4L2:/dev/video0): can't open camera by index · Issue #127 · EdjeElectronics/TensorFlow-Lite-Object-Detection-on-Android-and-Raspberry-Pi · GitHub