Normally running `python -m pip install .` in the directory where you have the code will install all dependencies you need.
(If you want to do development and/or don't want to install those dependencies globally you might want to create a virtual en…
The same issue is reported here: https://forums.openlp.org/discussion/5813/openlp-not-working-on-linux-mint-21-ubuntu-22-04#latest
TLDR; OpenLP 2.6.4 doesn't work with Python 3.10.
I've just upgraded KDE neon to the Ubuntu 22.04 based version. For me 2.9.5 starts, but has all sorts of UI issues where things just aren't rendered. I also just tried 2.4.6 from the Ubuntu repository and that fails with the same error you are seein…