Q: Ubuntu 18.04: Workspaces to Dock extension ERROR Anyone else has problems with the 'Workspaces to Dock' extension in Ubuntu 18.04?
I can install it with no problem from:
https://extensions.gnome.org/extension/427/workspaces-to-dock/
But every time I reboot, it does not load, and I see a warning sign in the GNOME Tweaks with the following message:

Error loading extension

Any clue?
EDIT:
Running the following command, as suggested in the comments, I spotted the following lines, which might be relevant.
sudo journalctl /usr/bin/gnome-shell | grep workspaces
Dec 24 13:41:35 dcarbajo-SLIMBOOK gnome-shell[2246]: Extension "workspaces-to-dock@passingthru67.gmail.com" had error: TypeError: Me is null
Dec 24 13:41:35 dcarbajo-SLIMBOOK gnome-shell[2246]: Extension workspaces-to-dock@passingthru67.gmail.com already installed in /home/dcarbajo/.local/share/gnome-shell/extensions/workspaces-to-dock@passingthru67.gmail.com. /usr/share/gnome-shell/extensions/workspaces-to-dock@passingthru67.gmail.com will not be loaded

