If you're seeing this error while trying to pair to Vue, chances are, you're doing something wrong.
This error shows up on Android if you try to pair to Vue Sensors in your phone's Bluetooth settings. Note however that you should not pair to Vue Sensors manually - the app takes care of pairing to Vue Sensors, so if you pair and connect to it yourself, the app will no longer be able to pair to Vue.
The correct procedure is to enter pairing mode on your Vue, then go through the steps in your app, and only pair to Vue Audio when prompted (not Vue Sensors).