topic Re: ultralytics libGL error in Data Science

ultralytics libGL error

sliu736 — Tue, 18 Nov 2025 15:48:50 GMT

Hi I am trying to load cv2 package in fabrics notebook and the error is:

ImportError: libGL.so.1: cannot open shared object file: No such file or directory

I've tried to install both opencv-python and opencv-python-headless, but neither of them works.

Re: ultralytics libGL error

FabianSchut — Fri, 08 Nov 2024 06:38:25 GMT

If I look at the documentation of the cv2, you should only have one package installed at a time: https://pypi.org/project/opencv-python/. Can you try to uninstall all four potential packages:
opencv-python
opencv-contrib-python
opencv-python-headless
opencv-contrib-python-headless

and reinstall only one?

Re: ultralytics libGL error

FabianSchut — Fri, 08 Nov 2024 06:40:54 GMT

And probably you want to reinstall the opencv-python-headless, since that one is less depend on other packages: https://stackoverflow.com/questions/55313610/importerror-libgl-so-1-cannot-open-shared-object-file-no-such-file-or-directo#answer-69125651

Re: ultralytics libGL error

sliu736 — Fri, 08 Nov 2024 06:44:37 GMT

Hi here is the list of packages I have.

And now cv2 cant be found. So confusing

Re: ultralytics libGL error

FabianSchut — Fri, 08 Nov 2024 07:37:16 GMT

Can you create a new environment in Fabric and install the headless version once there?

Re: ultralytics libGL error

sliu736 — Fri, 08 Nov 2024 08:25:51 GMT

Hi, that is already my current solution. And more confusing is that even if the only package installed was opencv-python-headless, opencv-python still exists in the pip list.

Re: ultralytics libGL error

Anonymous — Fri, 08 Nov 2024 09:14:34 GMT

Hi, sliu736

Thanks for FabianSchut's positive reply. When I install only the opencv-python package I get the same error as you, but after installing the opencv-python-headless package, the import command executes fine. You can try installing both packages

Best Regards,
Yang
Community Support Team

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