Caffeine error, "this._grid.layout_manager is null"

[W Wilja Wiklund]

After running an update last night, the Caffeine GNOME extension seems to no longer be working. When I opened the extension menu there is a warning which reads: this._grid.layout_manager is null

I tried removing and reinstalling the extension, but no dice. I checked journalctl /usr/bin/gnome-shell | grep caffeine and this seems to repeat every time I install the extension:

➜  ~ sudo journalctl /usr/bin/gnome-shell | grep caffeine
feb 08 17:15:40 BALVEDA gnome-shell[2334]: #0   55f365561fd0 i   /home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:383 (2b380dc5dbf0 @ 2037)
feb 08 17:15:40 BALVEDA gnome-shell[2334]: #2   55f365561e70 i   /home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:237 (2b380dc84e70 @ 27)
feb 08 17:15:40 BALVEDA gnome-shell[2334]: #3   55f365561da0 i   /home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:1074 (2b380dc84f10 @ 41)
feb 08 17:15:40 BALVEDA gnome-shell[2334]: #4   55f365561fd0 i   /home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:384 (2b380dc5dbf0 @ 2063)
feb 08 17:15:40 BALVEDA gnome-shell[2334]: #6   55f365561e70 i   /home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:237 (2b380dc84e70 @ 27)
feb 08 17:15:40 BALVEDA gnome-shell[2334]: #7   55f365561da0 i   /home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:1074 (2b380dc84f10 @ 41)
feb 08 17:15:40 BALVEDA gnome-shell[2334]: #4   55f365561fd0 i   /home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:384 (2b380dc5dbf0 @ 2063)
feb 08 17:15:40 BALVEDA gnome-shell[2334]: #6   55f365561e70 i   /home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:237 (2b380dc84e70 @ 27)
feb 08 17:15:40 BALVEDA gnome-shell[2334]: #7   55f365561da0 i   /home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:1074 (2b380dc84f10 @ 41)
feb 08 17:15:40 BALVEDA gnome-shell[2334]: JS ERROR: Extension [e-mail]: TypeError: this._grid.layout_manager is null
                                           _init@/home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:384:27
                                           Caffeine@/home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:237:1
                                           enable@/home/william/.local/share/gnome-shell/extensions/[e-mail]/extension.js:1074:25

[Jean-Philippe Braun]

Are you running gnome 43 ?

[Jean-Philippe Braun]

I believe you are not on the latest version, can you share what's in .local/share/gnome-shell/extensions/[e-mail]/metadata.json, thanks.

[W Wilja Wiklund]

Ah, gotcha! I am indeed running Gnome 43, my OS is Manjaro, on the Unstable branch.

Here's metadata.json:

{
  "_generated": "Generated by SweetTooth, do not edit",
  "description": "Disable the screensaver and auto suspend",
  "gettext-domain": "gnome-shell-extension-caffeine",
  "name": "Caffeine",
  "settings-schema": "org.gnome.shell.extensions.caffeine",
  "shell-version": [
    "43"
  ],
  "url": "https://github.com/eonpatapon/gnome-shell-extension-caffeine",
  "uuid": "[e-mail]",
  "version": 44
}

[Jean-Philippe Braun]

Ok this is strange, the error comes from the usage of QuickSettingsMenu._addItems in our extension

The error suggests that some object is not initialized properly in gnome-shell, somewhere here: https://gitlab.gnome.org/GNOME/gnome-shell/-/blob/gnome-43/js/ui/quickSettings.js#L615

[W Wilja Wiklund]

Ah! That explains it. It seems there was a conflict with the Compact Quick Settings extension. Thanks for the help! Caffeine works perfectly again after disabling that.