Mujoco-py: Ubuntu 16.04 Python3.5: ERROR: GLEW initalization error: Missing GL version

[iretiayo]

I installed mujocopy on Ubuntu 16.04 machine but I've been having issues using it or even running the example codes of mujocopy. I keep getting the error:
_ERROR: GLEW initalization error: Missing GL version_

Could you advise on how to fix this? I've spent quite some time on it but had no success.

[hmishra2250]

It's a work in progress.
Track it here.

[Jerryxiaoyu]

Hi @iretiayo ,I'm getting the same problem...How can you fix it?

[etendue]

Nope, still get this error. native mujoco runs correctly.

[jeremyf21]

I'm posting a solution here from this thread

You need to run the environment variable LD_PRELOAD first :

LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGLEW.so:/usr/lib/nvidia-384/libGL.so python your_file.py

I will add that line to my .bashrc and hopefully that should solve it.

[benelot]

@jeremyf21 Check which nvidia driver version you have installed on your device, the path must be adjusted to reflect the correct driver version (.../nvidia-XXX/...). To find your installed drivers on ubuntu linux, run:
apt-cache search nvidia | grep -P '^nvidia-[0-9]+\s'

[xlrobotics]

@jeremyf21 Your solution works perfectly, thanks a lot!

[Jin0932]

the method is: https://blog.csdn.net/gsww404/article/details/80636676

[yaogang2018]

I have no idea why my Ubuntu 18.04 has no /usr/lib/nvidia-384 folder,following @jeremyf21 and @Jin0932 I add export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGLEW.so:/usr/lib/x86_64-linux-gnu/libGL.so.1to .bashrc,and this error is gone.

[inspirepassion]

To update what's happening to my case for
@jeremyf21 's reply https://github.com/openai/mujoco-py/issues/75#issuecomment-383982069
1 I don't have libGLEW.so under /usr/lib/x86_64-linux-gnu/ in my file system (Ubuntu 18.04)
Solution: sudo apt-get install libglew-dev, I read it from this issue report: https://github.com/raulmur/ORB_SLAM2/issues/210

2 I don't have libGL.so under /usr/lib/nvidia-39*/ (I don't even have this folder), but when I searched the whole file system, libGL.so is actually located in /usr/lib/x86_64-linux-gnu
Solution:
1) open .bashrc sudo gedit ~/.bashrc
2) add this line at the end export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGLEW.so:/usr/lib/x86_64-linux-gnu/libGL.so (this is just a modification to people's previous reply, and I think some people might encounter similar situation)
3) save it, and restart the terminal, and WOLA~

[manchengfenxu]

@jeremyf21 ,Your solution works perfectly, thanks a lot!

[beingkartik]

@jeremyf21, thanks! for me, just adding export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGLEW.so to my bashrc file worked

[JiyueWang]

I hope I can help someone too.
I found out that I have no libGLEW in /usr/lib/x86_64-linux-gnu/ so I install the lib by
$ sudo apt-get install libglew2.0
after that I add this line to .bashrc
export LD_PRELOAD=/usr/lib/x86_64-Linux-gnu/libGLEW.so.2.0:/usr/lib/x86_64-Linux-gnu/libGL.so
Make sure that you have both libs in the right version and file name in the path above. Good luck.

[wkoa]

it's not work in my situation,

• Ubuntu 18.04
• CUDA 10.1 with GPU: Nvidia 1060
• Mujoco-py 1.50.1.68
• Mujoco 1.5
  I have added the line export LD_PRELOAD=/usr/lib/x86_64-Linux-gnu/libGLEW.so.2.0:/usr/lib/x86_64-Linux-gnu/libGL.so to .bashrc,
  but it seems failed

I have re-installed mujoco-py, gyms, baselines, then it works.