Hi

Just picked up a cheap laser engraver.   The software that comes with it uses windows.  However, all my computers use Ubuntu Linux 22.04 ( ubuntu and Ubuntu-mate)   Inkscape has been great for creating images but when I try to generate a gcode the extension manager dosnt work.  On ALL of the machines, 

The error message I get on this machine is;  Traceback (most recent call last):
  File "/usr/share/inkscape/extensions/extension-manager-bootstrap.py", line 28, in <module>
    import inkex
  File "/usr/share/inkscape/extensions/inkex/__init__.py", line 17, in <module>
    from .extensions import *
  File "/usr/share/inkscape/extensions/inkex/extensions.py", line 33, in <module>
    from .elements import load_svg, BaseElement, ShapeElement, Group, Layer, Grid, \
  File "/usr/share/inkscape/extensions/inkex/elements/__init__.py", line 9, in <module>
    from ._base import SVG_PARSER, load_svg, ShapeElement, BaseElement
  File "/usr/share/inkscape/extensions/inkex/elements/_base.py", line 31, in <module>
    from lxml import etree
ModuleNotFoundError: No module named 'lxml'

When I try the appimage I get; Gtk-Message: 10:43:58.745: Failed to load module "appmenu-gtk-module"
Gtk-Message: 10:43:58.746: Failed to load module "canberra-gtk-module"
/tmp/.mount_Inkscawoei1Z/usr/bin/../lib/libc.so.6: version `GLIBC_2.33' not found (required by /usr/lib/x86_64-linux-gnu/gvfs/libgvfscommon.so)
Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgioremote-volume-monitor.so
/tmp/.mount_Inkscawoei1Z/usr/bin/../lib/libc.so.6: version `GLIBC_2.33' not found (required by /lib/x86_64-linux-gnu/libproxy.so.1)
Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgiolibproxy.so
/tmp/.mount_Inkscawoei1Z/usr/bin/../lib/libc.so.6: version `GLIBC_2.33' not found (required by /usr/lib/x86_64-linux-gnu/gio/modules/libgvfsdbus.so)
Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgvfsdbus.so
/tmp/.mount_Inkscawoei1Z/usr/bin/../lib/libc.so.6: version `GLIBC_2.33' not found (required by /lib/x86_64-linux-gnu/libgnutls.so.30)
Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgiognutls.so

So it looks, like either the module is failing to load or a python thing        I have tried new installs from the Inkscape web site and the software store in Linux   all the same result

I know others are finding the same problem but I dont know how to address this problem

hope someone could help !

Stephen