Complete error message: Failed retrieving camera Stream -> MediaStreamError { name: "NotFoundError", message: "The object can not be found here.", constraint: "", stack: "" }

This error is due to the SDK not getting or not able to reach the camera for a stream.

If you are using Mac:

1. Quit all apps that are trying to use with the Camera 

2. Open Terminal (find in /Applications/Utilities)

3. on the prompt,  sudo killall VDCAssistant

If you are using Ubuntu or Windows:

1. Please note that only one application (Firefox / Chrome) can access the camera. 

2. Close the applications that are trying to access the camera and try again