Once the machine setup is done successfully as described in my previous post ("Click me!") we are good to go to install one more dependency which Dlib. Posting a completely new post just for Dlib because I struggled and like almost I just saved my OS from crashing so it deserves. Installing with the correct command is all that is needed there are many tutorials available for this installation and more I refer more I got confused so after 3 to 4 hour of struggle finally I came up with the necessary command which will be enough to install Dlib on your machine and we can proceed further to install the face_recognition package. Below are the commands I used and work perfectly: 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 python3 get-pip.py sudo pip3 install numpy sudo pip3 install scipy sudo pip3 install scikit-image sudo pip3 install dlib sudo pip3 i