Cannot build in Gnome Builder

[UserrX]

When I try to build per the instructions I get the following error in Builder

../../../../../../Projects/Gradience/meson.build:46:0: ERROR: Dependency "pygobject-3.0" not found, tried pkgconfig and cmake

Output of pacman -Ss pygobjects is as follows:

extra/python-gobject 3.44.1-3 [installed]
    Python Bindings for GLib/GObject/GIO/GTK+

I'm not sure what is going wrong. Any help appreciated.

[UserrX]

Ok... I think I fixed the above problem by running 'Update Dependencies' from Gnome Builder. It looks like everything built all right. Now, when I try to run the flatpak package from installer (Arch), I get the following error:

The application com.github.GradienceTeam.Gradience.Devel/x86_64/master requires the runtime org.gnome.Platform/x86_64/master which was not found

[0xMRTT]

Add gnome nighty flatpak repo and install the missing runtime

[UserrX]

nome nighty flatpak

Thanks for the reply. Can you tell me how to do this on Archlinux, please?

[daudix]

https://wiki.gnome.org/Apps/Nightly

[0xMRTT]

Install flatpak using pacman if it's not installed and run

flatpak remote-add --if-not-exists gnome-nightly https://nightly.gnome.org/gnome-nightly.flatpakrepo

[UserrX]

Install flatpak using pacman if it's not installed and run

flatpak remote-add --if-not-exists gnome-nightly https://nightly.gnome.org/gnome-nightly.flatpakrepo

Thanks for the help, both of you. That worked for me. However, I can now find Gradience in my application menu, but it won't start. It loading for a bit and the disappears.