Greetings,

I downloaded the latest oStorybook .deb file and attempted to install it on Kubuntu 10.04 (I understand it is no longer supported and am in the process of upgrading to a later version of the OS.)

This is the output from package manager:
p, li { white-space: pre-wrap; } Unpacking ostorybook (from .../oStorybook-4.10.0.deb) ... dpkg-deb: file `/home/william/Downloads/oStorybook-4.10.0.deb' contains ununderstood data member data.tar.xz , giving up dpkg: error processing /home/william/Downloads/oStorybook-4.10.0.deb (--install): subprocess dpkg-deb --fsys-tarfile returned error exit status 2 Processing triggers for menu ... Errors were encountered while processing: /home/william/Downloads/oStorybook-4.10.0.deb
It seems there is a non-understood command of data.tar.xz
Will this package install on a newer version? If so. I will try reinstalling when I have upgraded to a later version of the OS.
Thanks for your time.

William B. Isley
The Accidental Spiritualist

There is no file named data.tar.xz. I use Mint 17.2 and there is no problem with the package. Try to upgrade your system.