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

Question

i am trying to run cv2, and when i try to import it i get

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

the suggested solution online is installing

apt install libgl1-mesa-glx

but this is already installed and the latest version.Any help would be really helpful.Thanks in advance.

How did you install it? `pip install opencv-python`? Could be another issue. See https://github.com/matplotlib/matplotlib/issues/9954. Try creating a virtualenv and test it there. Can you share your code snippet where its throwing the exception? — HariUserX, Mar 23 '19 at 12:19
I am actually running this on docker, and i am not able to check the open cv version.I tried importing matplotlib and it imports fine. — Ryan, Mar 23 '19 at 12:49

score 163 · Answer 1 · edited Dec 08 '20 at 18:37

163

RUN apt-get update ##[edited]
RUN apt-get install ffmpeg libsm6 libxext6  -y

Add these lines to your Dockerfile

edited Dec 08 '20 at 18:37

Community

answered Aug 12 '20 at 13:31

Tushar Kolhe

3

This was very helpful. Was having problems running cv2 on my remote server. – Mercury Sep 02 '20 at 18:22
2

This solution worked for python:3.8-slim-buster base image – Surya Tej Feb 12 '21 at 14:06

Andrej Chudy · Answer 2 · 2021-03-04T10:43:45.303

11

This is a little bit better solution in my opinion. Package python3-opencv includes all system dependencies of OpenCV.

RUN apt-get update && apt-get install -y python3-opencv
RUN pip install opencv-python

edited Mar 04 '21 at 10:43

answered Mar 04 '21 at 10:36

Andrej Chudy

I'm using `python:buster`. the solution above didn't work for me: `ffmpeg` seems to be deprecated and I still had write errors. `apt-get install -y python3-opencv` did the trick. thanks – Eric F Mar 27 '21 at 14:21
This gets just about every lib you could want. I didn't try it, but is pip install still needed? – Mark Carpenter Jr Mar 29 '21 at 23:01

score 1 · Answer 3 · answered Apr 28 '21 at 14:26

1

Please run the following commands

sudo apt update


sudo apt install libgl1-mesa-glx

answered Apr 28 '21 at 14:26

krishna kurtakoti

score 0 · Answer 4 · answered Apr 14 '21 at 09:05

0

Here is the solution you need:

pip install -U opencv-python
apt-get upgrade
apt update && apt install -y libsm6 libxext6 ffmpeg libfontconfig1 libxrender1 libgl1-mesa-glx

answered Apr 14 '21 at 09:05

Ankur

score 0 · Answer 5 · answered Apr 30 '21 at 16:01

0

had the same issue on centos 8 after using pip3 install opencv on a non gui server which is lacking all sorts of graphics libraries.

dnf install opencv

pulls in all needed dependencies.

answered Apr 30 '21 at 16:01

Jens Timmerman

5 Answers5