flathub beta: Server returns 404.

[Alec Leamas]

Dear list,

I have a ci job which runs on Ubuntu 20.04. This has worked without 
changes for at least some weeks but all of sudden starts to fail.

Part of the problems I had has been about missing signing keys. These 
was reported when I added the PPA and are handled to the point that 
there are no such error messages.

The steps are basically:

$ sudo add-apt-repository -y ppa:alexlarsson/flatpak
$ sudo apt update
$ sudo apt install flatpak flatpak-builder

$ flatpak remote-add --user --if-not-exists flathub-beta \
     https://flathub.org/beta-repo/flathub-beta.flatpakrepo
$ flatpak install --user -y --noninteractive \
     flathub org.freedesktop.Sdk//22.08
$ flatpak install --user -y --or-update --noninteractive \
     flathub-beta  org.opencpn.OpenCPN

The last command returns "error: Failed to install org.opencpn.OpenCPN: 
While pulling app/org.opencpn.OpenCPN/x86_64/beta from remote 
flathub-beta: Server returned status 404: Not Found"

'flatpak repair --user' does not help, nor does re-installing flatpak.

'flatpak --version' says 1.12.4

Complete build log at 
https://app.circleci.com/pipelines/github/leamas/shipdriver_pi/1735/workflows/d9ea6071-2631-4ad8-b734-2afad8986f0e/jobs/17736

Any hints out there?

Cheers!
--alec