How to fix the error “QObject::moveToThread:” in opencv in python?

Question

I am using opencv2 in python with the code

import cv2
cv2.namedWindow(\"output\", cv2.WINDOW_NORMAL)       
cv2.imshow(\"output\",im)
cv2.resizeWindow(\'outp         


        

Answer 1

I had the same problem when i tried to run a detectron2 demo. My OS is Centos7 and i uninstall some applications about qt.

find applications about qt.

yum list installed |grep qt

remove applications

yum -y remove xxx...