pip3 install of packages failing

[c0de0gre]

Describe the bug
When I try to install the required packages with pip3, it throws an error.

To Reproduce
Steps to reproduce the behavior:

1. install Caldera from Git
2. cd /caldera
3. create and activate a Python3 venv
4. pip3 -r requirements.txt

Expected behavior
I expected the packages to install correctly

Screenshots

If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: kali
• Browser: Firefox
• Version: 2023.4

Additional context
Python version 3.13.2

[github-actions]

Looks like your first issue -- we aim to respond to issues as quickly as possible. In the meantime, check out our documentation here: http://caldera.readthedocs.io/

[elegantmoose]

what Caldera version?

[c0de0gre]

what Caldera version?

5.0.0

[c0de0gre]

Just tried again with a fully-updated version of Kali 2025.1, same error.

[elegantmoose]

can you independently pull most recent version of Caldera from github?

[c0de0gre]

I'm not clear what you mean by that.

[leba-atr]

As the error in the output says, you're probably missing the development packages of libxml2 and libxslt. Please install them via apt install libxml2-dev libxslt-dev and then try pip install ... again.

[c0de0gre]

As the error in the output says, you're probably missing the development packages of libxml2 and libxslt. Please install them via apt install libxml2-dev libxslt-dev and then try pip install ... again.

This did allow the install to go further, thank you.

[c0de0gre]

OK, found the solution: upgraded Kali uses Python3.13, which is not supported by lxml (yet). Using Python3.12 works.