When I try to mount my Xiaomi Redmi Note 9 Pro on my Ubuntu 20.04 via USB, I get "Unhandled error message: The name :1.1001 was not provided by any .service files" from Nautilus. It fails to mount. I have a Lenovo Y510p.
Tried every USB port.
Similar issue I have managed to solve with ‘nautilus -q’ typed in terminal. Worth a try. Don’t need to restart the computer.