Solved by Wyn_Mew in post #2 
              
              
                I think I found the fix. 
The LibTorch link provided by the tutorial is 

wget https://download.pytorch.org/libtorch/nightly/cpu/libtorch-shared-with-deps-latest.zip 

You should change it to 

wget https://download.pytorch.org/libtorch/nightly/cu90/libtorch-shared-with-deps-latest.zip