Beginner question, the plane.urdf doesn't work

[Scyklas]

Hey, I'm trying to use pybullet for a project but the HelloWorld program doesn't seem to work.
planeId = pybullet.loadURDF("plane.urdf")
error: Cannot load URDF file.

I tried with a different path and I made sure that pybullet was up to date but it's still not working and I would really like some help to be able to go further with it

Thanks for your help !