Dlib: ImportError: libmkl_rt.so: cannot open shared object file
I have installed dlib using pip install dlib but, upon using the correlation_tracker() I am getting the following error when I'm executing my program -
Traceback (most recent call last):
File "tracking.py", line 9, in <module>
import dlib
File "/usr/local/lib/python2.7/dist-packages/dlib/__init__.py", line 1, in <module>
from .dlib import *
ImportError: libmkl_rt.so: cannot open shared object file: No such file or directory
I can see that libmkl_rt.so is in the folder /opt/intel/compilers_and_libraries_2017.2.174/linux/mkl/lib/ia32_lin/libmkl_rt.so but, somehow maybe its not linked. Can anyone please help me to solve this?
therealanshuman
All 15 comments
You have to tell your OS about the MKL. So set your LD_LIBRARY_PATH or whatever equivalent environment variable your OS uses.
davisking
on 12 May 2017
missionary0, did you happen to solve this issue? i am facing the same problem while importing dlib.
I installed dlib using PIP and later one more time from source.
import dlib
Traceback (most recent call last):
File "
File "/home/jarvis/.virtualenvs/cv2/local/lib/python2.7/site-packages/dlib-19.4.99-py2.7-linux-x86_64.egg/dlib/__init__.py", line 1, in
from .dlib import *
ImportError: libmkl_rt.so: cannot open shared object file: No such file or directory
MayankSharma-MS
on 19 May 2017
Yeah! It can be solved as follows -
Create a file such as mylibs.conf in /etc/ld.so.conf.d. Then just add the path to the directory in which libmkl_rt.so is located in your system. It will probably be located in the following 3 directories -
/opt/intel/compilers_and_libraries_2017.2.174/linux/mkl/lib/ia32_lin//opt/intel/compilers_and_libraries_2017.2.174/linux/mkl/lib/intel64_lin//opt/intel/compilers_and_libraries_2017.2.174/linux/mkl/lib/intel64_lin_mic/
Or maybe, you can just find it using locate libmkl_rt.so. Then write to the file and run sudo ldconfig. This will create links to those libraries and then the OS would be able to locate them when needed.
therealanshuman
on 19 May 2017
Hi - Absolute noob question ..
Error as seen below :-
(opencv_venv) dhankar@dhankar-VPCEB44EN:~$ python
Python 3.5.2 (default, Aug 18 2017, 17:48:00)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import dlib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/dhankar/.virtualenvs/opencv_venv/lib/python3.5/site-packages/dlib/__init__.py", line 1, in <module>
from .dlib import *
ImportError: libmkl_rt.so: cannot open shared object file: No such file or directory
>>>
>>>
Located - libmkl_rt.so
(opencv_venv) dhankar@dhankar-VPCEB44EN:~$ locate libmkl_rt.so
/home/dhankar/anaconda2/lib/libmkl_rt.so
/home/dhankar/anaconda2/pkgs/mkl-11.3.3-0/lib/libmkl_rt.so
1- Tried Copying file into - venv as below --- no success.
~$ sudo cp -b /home/dhankar/anaconda2/lib/libmkl_rt.so /home/dhankar/.virtualenvs/opencv_venv/lib/python3.5/site-packages
2- Tried Sym LINK -- no sucess
:~/.virtualenvs/opencv_venv/lib/python3.5/site-packages$ ln -s /home/dhankar/anaconda2/lib/libmkl_rt.so libmkl_rt.so
Am not sure which package needs to be installed to make available - libmkl_rt.so , for a import within - dlib ?
3- Further tried ---
(opencv_venv) dhankar@dhankar-VPCEB44EN:~$ sudo apt-get install libmkl_rt.so
(opencv_venv) dhankar@dhankar-VPCEB44EN:~$ sudo apt-get install mkl-11.3.3-0
(opencv_venv) dhankar@dhankar-VPCEB44EN:~$ sudo apt-get install mkl
(opencv_venv) dhankar@dhankar-VPCEB44EN:~$ sudo ldconfig
Obviously nothing ... kindly someone guide me -
Further update ---
$ cd /etc/ld.so.conf.d
:/etc/ld.so.conf.d$ ls
fakeroot-x86_64-linux-gnu.conf i386-linux-gnu_GL.conf x86_64-linux-gnu.conf x86_64-linux-gnu_GL.conf
i386-linux-gnu.conf libc.conf x86_64-linux-gnu_EGL.conf
$ sudo touch dhankar_extra_libs.conf
[sudo] password for dhankar:
# Content of File --- dhankar_extra_libs.conf
# My Extra Libs FIle Paths
/home/dhankar/anaconda2/lib/libmkl_rt.so
/home/dhankar/anaconda2/pkgs/mkl-11.3.3-0/lib/libmkl_rt.so
#
:/etc/ld.so.conf.d$ ls
dhankar_extra_libs.conf i386-linux-gnu.conf libc.conf x86_64-linux-gnu_EGL.conf
fakeroot-x86_64-linux-gnu.conf i386-linux-gnu_GL.conf x86_64-linux-gnu.conf x86_64-linux-gnu_GL.conf
$ source dhankar_extra_libs.conf
Segmentation fault (core dumped)
Segmentation fault (core dumped)
$ sudo gedit libc.conf
# libc default configuration
# /usr/local/lib
$ cd /usr/local/lib
:/usr/local/lib$ sudo ln -s /home/dhankar/anaconda2/lib/libmkl_rt.so libmkl_rt.so
Still no success :)
RohitDhankar
on 24 Sep 2017
Run ldconfig after you update /etc/ld.so.conf.d
davisking
on 24 Sep 2017
Created a Conda Env , dlib_opencv
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ pip freeze
certifi==2016.2.28
cycler==0.10.0
decorator==4.1.2
dlib==19.7.0
matplotlib==2.0.2
networkx==2.0
numpy==1.13.1
olefile==0.44
Pillow==4.2.1
pyparsing==2.2.0
python-dateutil==2.6.1
pytz==2017.2
PyWavelets==0.5.2
scikit-image==0.13.0
scipy==0.19.1
six==1.11.0
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ python
Python 3.5.4 |Continuum Analytics, Inc.| (default, Aug 14 2017, 13:26:58)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import dlib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/dhankar/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages/dlib/__init__.py", line 1, in <module>
from .dlib import *
ImportError: libmkl_rt.so: cannot open shared object file: No such file or directory
>>>
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ locate libmkl_rt.so
/home/dhankar/anaconda2/lib/libmkl_rt.so
/home/dhankar/anaconda2/pkgs/mkl-11.3.3-0/lib/libmkl_rt.so
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ cd /home/dhankar/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ ls
certifi matplotlib-2.0.2-py3.5-nspkg.pth pip-9.0.1-py3.5.egg-info scikit_image-0.13.0.dist-info
certifi-2016.2.28-py3.5.egg-info mpl_toolkits pkg_resources scipy
cycler-0.10.0.dist-info networkx __pycache__ scipy-0.19.1.dist-info
cycler.py networkx-2.0.dist-info pylab.py setuptools
dateutil numpy pyparsing-2.2.0.dist-info setuptools-36.4.0-py3.5.egg-info
decorator-4.1.2.dist-info numpy-1.13.1.dist-info pyparsing.py six-1.11.0.dist-info
decorator.py olefile python_dateutil-2.6.1.dist-info six.py
dlib olefile-0.44.dist-info pytz skimage
dlib-19.7.0.dist-info OleFileIO_PL.py pytz-2017.2.dist-info wheel
easy_install.py PIL PyWavelets-0.5.2.dist-info wheel-0.29.0-py3.5.egg-info
matplotlib Pillow-4.2.1.dist-info pywt
matplotlib-2.0.2.dist-info pip README
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ cd dlib
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages/dlib$ ls
dlib.so examples __init__.py __pycache__
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages/dlib$ ln -s /home/dhankar/anaconda2/lib/libmkl_rt.so libmkl_rt.so
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages/dlib$ cd ..
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ ln -s /home/dhankar/anaconda2/lib/libmkl_rt.so libmkl_rt.so
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ cd ~
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ python
Python 3.5.4 |Continuum Analytics, Inc.| (default, Aug 14 2017, 13:26:58)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import dlib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/dhankar/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages/dlib/__init__.py", line 1, in <module>
from .dlib import *
ImportError: libmkl_rt.so: cannot open shared object file: No such file or directory
>>>
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ cd /home/dhankar/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ sudo cp -b /home/dhankar/anaconda2/lib/libmkl_rt.so /home/dhankar/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages
[sudo] password for dhankar:
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ ls
certifi matplotlib Pillow-4.2.1.dist-info pywt
certifi-2016.2.28-py3.5.egg-info matplotlib-2.0.2.dist-info pip README
cycler-0.10.0.dist-info matplotlib-2.0.2-py3.5-nspkg.pth pip-9.0.1-py3.5.egg-info scikit_image-0.13.0.dist-info
cycler.py mpl_toolkits pkg_resources scipy
dateutil networkx __pycache__ scipy-0.19.1.dist-info
decorator-4.1.2.dist-info networkx-2.0.dist-info pylab.py setuptools
decorator.py numpy pyparsing-2.2.0.dist-info setuptools-36.4.0-py3.5.egg-info
dlib numpy-1.13.1.dist-info pyparsing.py six-1.11.0.dist-info
dlib-19.7.0.dist-info olefile python_dateutil-2.6.1.dist-info six.py
easy_install.py olefile-0.44.dist-info pytz skimage
libmkl_rt.so OleFileIO_PL.py pytz-2017.2.dist-info wheel
libmkl_rt.so~ PIL PyWavelets-0.5.2.dist-info wheel-0.29.0-py3.5.egg-info
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ cd ~
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ python
Python 3.5.4 |Continuum Analytics, Inc.| (default, Aug 14 2017, 13:26:58)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import dlib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/dhankar/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages/dlib/__init__.py", line 1, in <module>
from .dlib import *
ImportError: libmkl_rt.so: cannot open shared object file: No such file or directory
>>>
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ cd /home/dhankar/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ ln -s /home/dhankar/anaconda2/lib/libmkl_rt.so libmkl_rt.so
ln: failed to create symbolic link 'libmkl_rt.so': File exists
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ sudo rm -f libmkl_rt.so
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ ln -s /home/dhankar/anaconda2/lib/libmkl_rt.so libmkl_rt.so
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages$ cd ~
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ python
Python 3.5.4 |Continuum Analytics, Inc.| (default, Aug 14 2017, 13:26:58)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import dlib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/dhankar/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages/dlib/__init__.py", line 1, in <module>
from .dlib import *
ImportError: libmkl_rt.so: cannot open shared object file: No such file or directory
>>>
>>>
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ cd /etc/ld.so.conf.d
(dlib_opencv) dhankar@dhankar-VPCEB44EN:/etc/ld.so.conf.d$ ls
dhankar_extra_libs.conf i386-linux-gnu.conf libc.conf x86_64-linux-gnu_EGL.conf
fakeroot-x86_64-linux-gnu.conf i386-linux-gnu_GL.conf x86_64-linux-gnu.conf x86_64-linux-gnu_GL.conf
(dlib_opencv) dhankar@dhankar-VPCEB44EN:/etc/ld.so.conf.d$ sudo gedit dhankar_extra_libs.conf
(gedit:10503): Gtk-WARNING **: Calling Inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
** (gedit:10503): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-spell-enabled not supported
** (gedit:10503): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-encoding not supported
** (gedit:10503): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-spell-enabled not supported
** (gedit:10503): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-encoding not supported
** (gedit:10503): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-position not supported
(dlib_opencv) dhankar@dhankar-VPCEB44EN:/etc/ld.so.conf.d$ sudo ldconfig
(dlib_opencv) dhankar@dhankar-VPCEB44EN:/etc/ld.so.conf.d$ cd ~
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$ python
Python 3.5.4 |Continuum Analytics, Inc.| (default, Aug 14 2017, 13:26:58)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import dlib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/dhankar/anaconda2/envs/dlib_opencv/lib/python3.5/site-packages/dlib/__init__.py", line 1, in <module>
from .dlib import *
ImportError: libmkl_rt.so: cannot open shared object file: No such file or directory
>>>
>>>
(dlib_opencv) dhankar@dhankar-VPCEB44EN:~$
I will soon edit this comment and make it shorter , in the meanwhile - kindly bear with me and suggest if there is a solution - thanks
Regards
Rohit
RohitDhankar
on 25 Sep 2017
This isn't a dlib problem.
Google "how to add to ldconfig path"
davisking
on 25 Sep 2017
@davisking - you sir are truly a KING - many thanks my issue is resolved :)
God Speed - dlib is installed n running.
RohitDhankar
on 25 Sep 2017
@RohitDhankar I had the same issue as you did. How did you resolve yours?
iakash2604
on 26 Sep 2017
@iakash-1326 - update your ~./bashrc with the -- libmkl_rt.so , path.
No need to make any changes to --- cd /etc/ld.so.conf.d
### DLIB
# LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/usr/local/lib
# MKL
export LD_LIBRARY_PATH=/home/dhankar/anaconda2/pkgs/mkl-11.3.3-0/lib/:$LD_LIBRARY_PATH
I didnt make any changes within - cd /etc/ld.so.conf.d
Kindly note export LD_LIBRARY_PATH is as suggested by @davisking , in his very first answer above . My bad i should have read his instructions properly .
RohitDhankar
on 26 Sep 2017
@RohitDhankar @davisking thank you so much. You guys literally saved my semester.
This is what I got on running locate libmkl_rt.so
akash1326@theodrew:~$ locate libmkl_rt.so
/home/akash1326/anaconda3/lib/libmkl_rt.so
/home/akash1326/anaconda3/pkgs/mkl-11.3.1-0/lib/libmkl_rt.so
/home/akash1326/anaconda3/pkgs/mkl-2017.0.1-0/lib/libmkl_rt.so
/home/akash1326/anaconda3/pkgs/mkl-2017.0.3-0/lib/libmkl_rt.so
so, this is the change I made to ./bashrc as you suggested
export LD_LIBRARY_PATH=/usr/local/lib
export LD_LIBRARY_PATH=/home/akash1326/anaconda3/lib/:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/home/akash1326/anaconda3/pkgs/mkl-11.3.1-0/lib/:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/home/akash1326/anaconda3/pkgs/mkl-2017.0.1-0/lib/:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/home/akash1326/anaconda3/pkgs/mkl-2017.0.3-0/lib/:$LD_LIBRARY_PATH
its working well now
iakash2604
on 26 Sep 2017
pip install mkl
it works to me
LaviLiu
on 27 May 2018
I have also had the following traceback
ImportError: libmkl_rt.so: cannot open shared object file: No such file or directory
with python 3.6.6 and dlib 19.15.0 on Ubuntu 16.04.4 LTS, but unlike the previous commentators, my command locate libmkl_rt.so returned nothing. I tried everything described above, but it did not help me.
After all I solved the problem by removing dlib from pip and building it from source.
yuriimchg
on 27 Sep 2018
@RohitDhankar @iakash2604 Thanks
This is what I got on running locate libmkl_rt.so
/home/sager/anaconda3/envs/tf/lib/libmkl_rt.so
/home/sager/anaconda3/lib/libmkl_rt.so
/home/sager/anaconda3/pkgs/mkl-2018.0.2-1/lib/libmkl_rt.so
/home/sager/anaconda3/pkgs/mkl-2018.0.3-1/lib/libmkl_rt.so
/home/sager/anaconda3/pkgs/mkl-2019.1-144/lib/libmkl_rt.so
this is the change I made to ～/.bashrc as you suggested:
_# LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/usr/local/lib
MKL
export LD_LIBRARY_PATH=/home/sager/anaconda3/envs/tf/lib/:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/home/sager/anaconda3/lib/:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/home/sager/anaconda3/pkgs/mkl-2018.0.2-1/lib/:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/home/sager/anaconda3/pkgs/mkl-2018.0.3-1/lib/:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/home/sager/anaconda3/pkgs/mkl-2019.1-144/lib/:$LD_LIBRARY_PATH_
I should run in env It works well.
(fs35) sager@cumt:~$ python
Python 3.5.6 |Anaconda, Inc.| (default, Aug 26 2018, 21:41:56)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
import dlib
DylanMaeng
on 23 Jan 2019
I've just had the same problem. I tried Laviyy's suggestion above (pip install mkl) and it solved the problem.
Alex159
on 12 Dec 2019
Related issues
rsadiq
·
4Comments
pliablepixels
·
4Comments
srikanthreddybethi
·
4Comments
AeroClassics
·
4Comments
maromcik
·
4Comments
Most helpful comment
pip install mkl
it works to me