Did you follow the instructions at https://docs.mopidy.com/en/latest/installation/raspberrypi/#how-to-for-raspbian?
I redid that document not that long ago and it was all working.
Did you follow the instructions at https://docs.mopidy.com/en/latest/installation/raspberrypi/#how-to-for-raspbian?
I redid that document not that long ago and it was all working.