I'm using ubuntu 19.10 from the last 2 months and It was working fine until today. When I try to open my android phone after connecting through USB cable it pops up this error message:
"Unhandled error message: The name: 1.134 was not provided by any.service file"
I had the same problem today, did some research and ended up installing gmtp (sudo apt-get install gmtp) and rebooting ubuntu. It worked fine then. I don't actually know if it was gmtp or rebooting that fixed it, but you can try.
I had same issue, Restarting my computer worked for me.
Legend has it that you can solve this by simply killall nautilus and open it again.
I use Nautilus, so this solution worked for me.