Hello, thanks for your solution.
I tried this on my Ubuntu 20.04 and maybe it works.
However, actually I face the issue like Error `Failed to establish dbus connection` when running `sim = gym.create_sim(...)`
When I tried your solution, it does not help and the error mentioned in this post still occurs, even a simple pyqt program may fail.
Would you please come and see how to fix the issue in this post?