I cannot install ROS Kinetic desktop following the tutorial.

edit

No way to install ROS Kinetic with OpenCV in RPi4, I followed the official guide, from a fresh install, with swap, with -j1,-j2... Did somebody get install Kinetic with openCV? i got install OpenCV 4.1 sucessfully, but I cannot with the Kinetic version. To ROS Kinetic recognize OpenCV 4.1 or any standalone version is crezy difficult get it if you are not mastered in Linux and there is not a specific guide for RPi4 or 3 at least I couldnt find it.

^~~~~~~~~~~~~~~~~~~~~~~~~~
make[2]: *** [modules/python3/CMakeFiles/opencv_python3.dir/build.make:63: modules/python3/CMakeFiles/opencv_python3.dir/__/src2/cv2.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:8425: modules/python3/CMakeFiles/opencv_python3.dir/all] Error 2
make: *** [Makefile:163: all] Error 2
<== Failed to process package 'opencv3': 
Command '['/opt/ros/kinetic/env.sh', 'make', '-j1']' returned non-zero exit status 2

Reproduce this error by running:
==> cd /home/pi/ros_catkin_ws/build_isolated/opencv3 && /opt/ros/kinetic/env.sh make -j1

Command failed, exiting.

in some place I read a similar issue by lack of memory, my rpi4 is 4Gb plus 4Gb partition in a SSD and I even built with -j1

Edit: thank you by the advice, Im new in all this. I tried install ROS robot to avoid OpenCV installation but either received another error.

==> Processing catkin package: 'rospack'
==> Building with env: '/opt/ros/kinetic/env.sh'
Makefile exists, skipping explicit cmake invocation...
==> make cmake_check_build_system in '/home/pi/ros_catkin_ws/build_isolated/rospack'
==> make -j4 -l4 in '/home/pi/ros_catkin_ws/build_isolated/rospack'
[ 33%] Building CXX object CMakeFiles/rospack.dir/src/rospack_cmdline.cpp.o
[ 33%] Building CXX object CMakeFiles/rospack.dir/src/rospack_backcompat.cpp.o
[ 33%] Building CXX object CMakeFiles/rospack.dir/src/rospack.cpp.o
[ 44%] Building CXX object CMakeFiles/rospack.dir/src/utils.cpp.o
In file included from /home/pi/ros_catkin_ws/src/rospack/src/rospack.cpp:28:
/home/pi/ros_catkin_ws/src/rospack/include/rospack/rospack.h:108:10: fatal error: boost/tr1/unordered_set.hpp: No such file or directory
 #include <boost/tr1/unordered_set.hpp>