title: It seems that your device does not support camera
body: <p>I have come across an error which I guess is very common in OpenCV apps. When I try to run the app, it says "it seems that your device does not support camera(or it is locked)". I have seen <a href="https://stackoverflow.com/questions/20666366/it-seems-that-your-device-does-not-support-cameraor-it-is-locked">this</a> and <a href="https://stackoverflow.com/questions/20987361/opencv-it-seems-that-your-device-does-not-support-cameraor-it-is-locked">this</a> and I have already done whatever they have said, like granting camera permission and rebooting the device etc. But still problem persists. I know this problem means that any other app must be using camera and hence it is locked. When I clear the cache of all the apps using camera which might me using camera, then it works but just once. After that same issue. Any solution to this problem?</p>
  
  <p>Thank you.</p>