I'm fairly new to Raspbian and raspberry pi 3 is in my hands. I'm following along a book in which I have to install some packages of OpenCV. My project is related to Machine/Deep learning. My code is shown below.
pi@raspberrypi:~/workspace/opencv-3.4.4 $ sudo make install
What it rendered is shown below.
make: *** No rule to make target 'install'. Stop.
Could you guess and tell me what's wrong with it?