Release 16 doesn’t work in Gnome Shell 3.28 (Ubuntu 18.04): GObject.registerClass() used with invalid base class (is PanelMenuButton)
I’m using Ubuntu 18.04, which has Gnome Shell 3.28 (3.28.3+git20190124-0ubuntu18.04.1).
After I updated the extension to latest release (16), it fails to start. Gnome Shell reports this error:
Extension "System_Monitor@bghome.gmail.com" had error: TypeError: GObject.registerClass() used with invalid base class (is PanelMenuButton)Downgrading to release 14 makes it work again.
Ubuntu’s appindicator extension has a similar issue from a while back, with pointers to an issue with the extensions website, but I’m unsure if this is related.
In any case, I decided to open this issue to at least document it. Feel free to close it if it’s intentional (Gnome Shell 3.28 no longer supported), or otherwise not a bug with System Monitor.