Solved by ptrblck in post #6 
              
              
                These is somewhere the libaten still on your system. 
Could you check your LD_LIBRARY_PATH for unnecessary paths? 
Also just to make sure we get rid of all installs, could you run this again: 
conda uninstall -y pytorch-nightly
conda uninstall -y pytorch
pip uninstall -y torch
pip uninstall -y torch…