I got nano pi M4. I boot it up using friendly desktop. I am trying to install open3d - python package. It is installed on the system but when I try to import it. It is giving error like "no module named open3d. ". I have built it also from open3d website. But it is giving error like "can not open shared file open3d.so " I have successfully installed open3d in Ubuntu 16.04. What could be the possible cause for this kindly help?