RuntimeError: Failed to initialize OpenGL

[MrHuangWenjie]

Intro

Hi!

I am new to Mujoco. I have installed mujoco_py and mujoco simulator following the instructions here.

After installation, I have changed my ~/.bashrc by adding
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/wenjie/.mujoco/mujoco210/bin export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/nvidia export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGLEW.so

Then, I was testing the installation and configuration, running code:

`import mujoco_py
import mujoco
import os

mj_path = mujoco_py.utils.discover_mujoco()
print(mj_path)
xml_path = os.path.join(mj_path, 'model', 'humanoid.xml')
model = mujoco_py.load_model_from_path(xml_path)
sim = mujoco_py.MjSim(model)
viewer = mujoco_py.MjViewer(sim)
print(sim.data.qpos)
sim.step()
print(sim.data.qpos)
sim.render()`

Which threw me a Runtime Error. The terminal output is quoted below:

It is running on Ubuntu 22.04, Python 3.9. I appreciate it a lot if someone could provide some clues on it!

My setup

MuJoCo 210, Python 3.9, Ubuntu 22.04

What's happening? What did you expect?

Nah

Steps for reproduction

1. install MuJoCo_py and MuJoCo
2. Run the quoted code

Minimal model for reproduction

Nah

Code required for reproduction

import mujoco_py
import mujoco
import os

mj_path = mujoco_py.utils.discover_mujoco()
print(mj_path)
xml_path = os.path.join(mj_path, 'model', 'humanoid.xml')
model = mujoco_py.load_model_from_path(xml_path)
sim = mujoco_py.MjSim(model)
viewer = mujoco_py.MjViewer(sim)
print(sim.data.qpos)
sim.step()
print(sim.data.qpos)
sim.render()

Confirmations

• I searched the latest documentation thoroughly before posting.
• I searched previous Issues and Discussions, I am certain this has not been raised before.