Ok, thanks for that test. What it means is that the issue is not related to IDE, but rather with the package or interpreter.
Unfortunately I can't give you a definitive solution for now. You can also try asking for help on resources like StackOverlow or apriltag github page. Let's see if someone else here ran into a similar issue.
Hello Mikenike225, actually I was working on that project back in 2019 and I wasn't able to solve it back then since I was beginner in Python and I messed up with my virtual environments and packages and thats why the AprilTags package didn't work.
I had to uninstall and remove all my virtual environments and Python then do a fresh install for python and organize my Virtual environments again. I remember also that I continued my project on VS Code since the team I was working with was using VS Code. But then I returned now to PyCharm as my main Python IDE and I guess the issue should be resolved regarding the AprilTags package.
Please if you can provide me with more details about what you are working on so maybe we can find the problem at your side!
Hi, please try to reproduce the issue in your system terminal (outside of PyCharm):
1. cd to your project root
2. activate virtualenv with `cv/scripts/activate.bat`
3. install with `pip install apriltag`
Will the issue reproduce?
Dear Andrey,
Kindly find the attached screenshot of the cmd after following your request.
Thank you in advance!

Ok, thanks for that test. What it means is that the issue is not related to IDE, but rather with the package or interpreter.
Unfortunately I can't give you a definitive solution for now. You can also try asking for help on resources like StackOverlow or apriltag github page. Let's see if someone else here ran into a similar issue.
Okay I will search there.
Thanks for the advices Andrey :D !
I am running into the same issue and not getting very far with a solution, were you able to the package to install?
Hello Mikenike225, actually I was working on that project back in 2019 and I wasn't able to solve it back then since I was beginner in Python and I messed up with my virtual environments and packages and thats why the AprilTags package didn't work.
I had to uninstall and remove all my virtual environments and Python then do a fresh install for python and organize my Virtual environments again. I remember also that I continued my project on VS Code since the team I was working with was using VS Code. But then I returned now to PyCharm as my main Python IDE and I guess the issue should be resolved regarding the AprilTags package.
Please if you can provide me with more details about what you are working on so maybe we can find the problem at your side!