When I try to install Gradio v7.1 via Flatpak, I get this error:
error: While opening repository /var/lib/flatpak/repo: opendir(objects): No such file or directory
Although I've installed Flatpak via its repo, even other commands give this error:
$ flatpak update -v error: While opening repository /var/lib/flatpak/repo: opendir(objects): No such file or directory
Edit: test on Ubuntu 18.04
I already followed the Ubuntu quick setup guide. It installs flatpak package but commands does not run on Ubuntu 16.04. I've already tested on Ubuntu 18.04. No problems occured. Gradio can be installed via flatpak without any problems.
I try to find the problem for 16.04.