New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Illegal instruction (core dumped) #620
Comments
You should need libX11-dev. However, I would expect a different error message if that was the problem. I would try with just one version of python installed and no virtual environments. Just the most basic setup. |
Davis, thank you for your answer. I hope that you willl help me to solve this problem. I want to install dlib. I decide to reinstall Ubuntu 16.04 and I created new Lubuntu 16.04 in VirtualBox. I run these commands in VirtualBox (Lubuntu 16.04).
I made a Snapshot (Snapshot number A) My next goal - is to install OpenCV becasue I want to use dlib with OpenCV. I run these commands to install OpenCV Install OpenCV, Lubuntu 16.04 (in VirtualBox)
Success, I can run python3 and I can run import cv2. I made the next Snapshot called B Now goal is to install dlib (in VirtualBox, Lubuntu 16.04) sudo apt-get install libx11-dev pip3 install numpy pip3 install dlib Success, I can run python3 and I can run "import dlib" Test dlib pip3 install argparse Adrian wrote an example with dlib here:http://www.pyimagesearch.com/2017/04/03/facial-landmarks-dlib-opencv-python/ I want to run this example. So I decide to test this example (to test dlib, in VirtualBox, Lubuntu 16.04) You can see Screenshot: http://imgur.com/cHwqmez I run Adrian's example but I did not see any result (I don't see output with image). So I decided to test dlib myself. You can see this in Screenshot. I run these commands: python3 import cv2 I don't have now problem with core dumped (it's nice!!!) but I wrote print(help(rects)) and I did not see anything. I wrote print("Hello") and I did not see anything. You can see this in Screenshot. What can I do to solve this problem? I have two snapshots in VirtualBox (after installation Lubuntu 16.04 and after installation OpenCV) So if I did something wrong, I can load the snapshot and write other commands to install dlib correctly. |
I don't know why print() doesn't work for you, but it doesn't have anything to do with dlib. |
I should also point out that you should run the face_detector.py example that comes with dlib. Does that crash or act funny? If not then the problem is almost certainly with some other thing you are doing or have installed, rather than anything related to dlib. |
Maybe this is solution: Issue: Illegal instruction (core dumped) when using face_recognition or running examples. Solution: dlib is compiled with SSE4 or AVX support, but your CPU is too old and doesn't support that. You'll need to recompile dlib after making the code change outlined here. The issue is most likely that dlib was compiled with support for AVX and/or SSE4 instructions, but your cpu is too old to support them (pre-2011, I think). The easiest solution is to download dlib and compile it yourself. But when you do that, you need to make one change.Before compiling dlib, edit dlib's tools/python/CMakeLists.txt file from: set(USE_SSE4_INSTRUCTIONS ON CACHE BOOL "Use SSE4 instructions") to: set(USE_SSE2_INSTRUCTIONS ON CACHE BOOL "Use SSE2 instructions") And then compile and install dlib and the dlib python extensions. Hopefully that should fix it. |
Maybe. Did you run the dlib example program https://github.com/davisking/dlib/blob/master/python_examples/face_detector.py to see if it works? |
Davis, I run this example yesterday. I had the error. But now I installed dlib correctly!!!! I downloaded dlib here: https://github.com/davisking/dlib/ Before compiling dlib, I edited dlib's tools/python/CMakeLists.txt file from: set(USE_SSE4_INSTRUCTIONS ON CACHE BOOL "Use SSE4 instructions") to: set(USE_SSE2_INSTRUCTIONS ON CACHE BOOL "Use SSE2 instructions") Then I run python3 setup.py install And it worked! You example https://github.com/davisking/dlib/blob/master/python_examples/face_detector.py works and I think that Adrian's example will work too. Nice!!!! I'm very glad. |
I installed Ubuntu 16.04. And I run these commands in terminal:
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential cmake pkg-config
sudo apt-get install libjpeg8-dev libtiff5-dev libjasper-dev libpng12-dev
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
sudo apt-get install libxvidcore-dev libx264-dev
sudo apt-get install libatlas-base-dev gfortran
sudo apt-get install python2.7-dev python3.5-dev
sudo apt-get install build-essential cmake
sudo apt-get install libgtk-3-dev
sudo apt-get install libboost-all-dev
wget https://bootstrap.pypa.io/get-pip.py
sudo python get-pip.py
mkvirtualenv py3_dlib -p python3
<I ran in a virtual environment "py3_dlib" these commands>
pip install numpy
pip install scipy
pip install scikit-image
pip install dlib
import sys
import dlib
from skimage import io
detector = dlib.get_frontal_face_detector()
win = dlib.image_window()
output:
Illegal instruction (core dumped)
import dlib
detector = dlib.get_frontal_face_detector()
image = cv2.imread('/home/mns/Downloads/f24.jpg')
image = imutils.resize(image, width=500)
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
rects = detector(gray,1)
And I have here the same error:
Illegal instruction (core dumped)
What can I do solve this problem?
P.S.
I also created a virtual environment cv2 (installed OpenCV) and a virtual environment keras_tf (installed tensor flow and keras).
The text was updated successfully, but these errors were encountered: