Gtk error messages on startup.

Question

When I run Cadabra_2.5.6_x86_64.AppImage from a terminal I get the following error messages:

Gtk-Message: 12:54:41.239: Failed to load module "canberra-gtk-module" Gtk-Message: 12:54:41.264: Failed to load module "window-decorations-gtk-module" Gtk-Message: 12:54:41.264: Failed to load module "colorreload-gtk-module"

but it seems to keep running, although with fonts that are not my usual choice.

Also, (not necessarily at startup) I get messages on the terminal saying

cadabra-client: connection to server on port 33555 failed

Answer 1

I may need to see if those gtk modules should be included in the AppImage too (I have not done a lot of testing with the AppImage on systems that are truly bare, without an existing gtk installation).

The connection to server failed message happens when you restart the kernel or load a new notebook (which restarts the kernel too). This kills the existing cadabra-server first, and the client then reports that. I could probably remove that error as it sounds more alarming than it is.