Unmet dependency to xapp-gtk3-module on Linux Mint

[mdear]

When I launched SavvyCAN I see the following error:

$ ./SavvyCAN-53c0dae-x86_64.AppImage 
Gtk-Message: 06:54:32.440: Failed to load module "xapp-gtk3-module"

I don't see this module in the AppImage exclusion list: https://raw.githubusercontent.com/probonopd/AppImages/master/excludelist

I try to rectify, to no avail:

$ sudo apt-get install xapp-gtk3-module
...
E: Unable to locate package xapp-gtk3-module

$ sudo apt-get install libxapp1
...
libxapp1 is already the newest version (2.6.1+victoria).
0 upgraded, 0 newly installed, 0 to remove and 396 not upgraded.

$ sudo apt-get install xapp
...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 xapp : Depends: libxapp1 (= 2.2.8-1) but 2.6.1+victoria is to be installed
E: Unable to correct problems, you have held broken packages.
$ 

Some system dumps (Mint Victoria is based on Ubuntu Jammy Jellyfish):

$ uname -a
Linux servername 5.15.0-76-generic #83-Ubuntu SMP Thu Jun 15 19:16:32 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

$ cat /etc/issue
Linux Mint 21.2 Victoria \n \l

[collin80]

People seem to be talking about this exact issue here: https://askubuntu.com/questions/1396739/failed-to-load-module-xapp-gtk3-module