I’m on Ubuntu 18.04 and have been using Flatpak to install stuff for a while now (Libreoffice etc). Today I tried to install Rocket.Chat and got this error-
$ flatpak install flathub chat.rocket.RocketChat Looking for matches… chat.rocket.RocketChat permissions: ipc network pulseaudio wayland x11 devices file access  dbus access   xdg-documents, xdg-download, xdg-pictures  org.freedesktop.Notifications, org.kde.StatusNotifierWatcher ID Branch Op Remote Download 1. [✗] chat.rocket.RocketChat stable i flathub 1.0 kB / 74.9 MB Error: Error pulling from repo: GPG verification enabled, but no signatures found (use gpg-verify=false in remote config to disable) error: Failed to install chat.rocket.RocketChat: Error pulling from repo: GPG verification enabled, but no signatures found (use gpg-verify=false in remote config to disable)
(I tried installing few other flatpaks and that worked, seems like something specific to Rocket.Chat)
Anyone got ideas on how to fix this?