Ghada Chouichi

cv2.error: OpenCV(4.6.0) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

2

Hello, It didn't work for me , I always get this Error gray = cv2.cvtColor(box, cv2.COLOR_RGB2GRAY) cv2.error: OpenCV(4.6.0) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor' I verified the img...

It show connected but there is no data  

Everything is working without error: node-red,openzwave,zwave2mqtt nd I get {"source":"zwave[1]","label":"Latest Available Config File Revision","value":3,"action":"ValueChanged","timestamp":1593683947563}" in node-red but no data from sensor.