Barcode render error, ModuleNotFoundError: No module named 'lxml'

Steps to reproduce:

• open Inkscape
• Go to extensions
• Go to render
• barcode
• classic
• create a barcode

What happened?

Traceback (most recent call last): File "render_barcode.py", line 25, in import inkex File "C:\Program Files\Inkscape\share\inkscape\extensions\inkex__init__.py", line 11, in from .extensions import * File "C:\Program Files\Inkscape\share\inkscape\extensions\inkex\extensions.py", line 33, in from .elements import load_svg, BaseElement, ShapeElement, Group, Layer, Grid,
File "C:\Program Files\Inkscape\share\inkscape\extensions\inkex\elements__init__.py", line 8, in from ._base import SVG_PARSER, load_svg, ShapeElement, BaseElement File "C:\Program Files\Inkscape\share\inkscape\extensions\inkex\elements_base.py", line 31, in from lxml import etree ModuleNotFoundError: No module named 'lxml'

What should have happened?

Inkscape Version and Operating System:

• Inkscape Version: 1.0 (inkscape@4035a4fb, 2020-05-01)
• Operating System: Windows 10
• Operating System version: ...