How to install refs from created usb for installing app?

[Yi-Soo An]

SOLVED.

On 01/02/2019 02:03 PM, Yi-Soo An wrote:
> I have already made a usb with refs for gnome-builder.
> But when I try to install it without internet connection, I got this error.
> 
> $ flatpak install --user flathub org.gnome.Builder//stable
> 
> error: Unable to load metadata from remote flathub: No such ref 
> (org.flathub.Stable, ostree-metadata) in remote flathub or elsewhere
> 
> 
> But when I tried remote-ls, it shows as below,
> 
> $ flatpak remote-ls file:///media/test/workshop/.ostree/repo
> Ref
> org.freedesktop.Platform.html5-codecs
> org.gnome.Builder
> org.gnome.Sdk
> org.gnome.Sdk.Docs
> org.gtk.Gtk3theme.Ambiance
> 
> 
> Do I have to command this every single time when I wanna install it via 
> usb?
> 
> $ flatpak remote-modify --collection-id=org.flathub.Stable flathub
> $ flatpak update
> 
> 
> I really have no idea what's the matter with it.
> 
> Thank you in advance.