One thing that’s quite easy to forget is that the camera can usually only be used by one app or program on your Mac at any given time.
Related: How to Fix Webcam or Camera Not Working in Windows 10 Is Another App Using the Camera? If you’re having trouble with the Mac camera not working and using the built-in camera, try one of these quick fixes to get it working again. Camera issues on the Mac are usually minor, and their solutions can be as simple as just shutting down and powering up your computer. Don’t panic if your Mac’s camera suddenly stops working during a video call or if you see a “No camera connected” or “No camera available” error when you launch an app.