1 I finished all the os and sdk install process
2 when i compline program,error fellows:
Make [2]: there is no rule to make the target “/ usr / lib / aarch64 Linux GNU / libopencv_viz. So. 3.2.0”, which is required by “/ home / cpilab / catkin_ws / devel_isolated / apriltag_ros / lib / libapriltag_ros_common. So” Stop it.
3 I try to use commed such as
sudo ln -s /usr/lib/libopencv_viz.so.3.3.1 /usr/lib/aarch64-linux-gnu/libopencv_viz.so.3.2.0
4 but i can’t find “libopencv_viz.so.3.3.1” in the usr/lib
5 can i use the commend "sudo apt install libopencv_viz…“to sovle this? dose this commed make effect to the “ros-melodic” or “opecv”,last time,after i do this,my opencv seems broken,i can’t use"pkg-config --modversion opencv”,so i dont know how to this?