How to fix “There is no connected camera” error that prevents you from using Camera with FaceTime under MacOS Mojave?
- Open Terminal, which can be found under /Applications/Utilities/
- Enter the following command, then hit return:
sudo killall VDCAssistant
- Then enter one more command line.
sudo killall AppleCameraAssistant
- During the processes, the administrator password might be requested (this is the password is used to unlock your Mac from the locked screen)