dlib: ImportError: libmkl_rt.so: cannot open shared object file

pip install mkl it works to me

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 -

1. /opt/intel/compilers_and_libraries_2017.2.174/linux/mkl/lib/ia32_lin/
2. /opt/intel/compilers_and_libraries_2017.2.174/linux/mkl/lib/intel64_lin/
3. /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.

Just want to confirm that I tried pip install mkl which did not fix the issue but then

conda install mkl

did fix it for me

@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 .

This fixed it for me:

conda install mkl

This isn’t a dlib problem.

Google “how to add to ldconfig path”

@davisking - you sir are truly a KING - many thanks my issue is resolved 😃 God Speed - dlib is installed n running.

You have to tell your OS about the MKL. So set your LD_LIBRARY_PATH or whatever equivalent environment variable your OS uses.