The reason why it does not work on 18.04

[lvgeng]

I do not believe it has been tested on a regular Ubuntu 18.04...

Compile from source:

1. python-pcl assumes you are using python 2 while you are trying to run the setup.py from build.sh. Esay to fix by changing to python3
2. libpcl-1.8 installed via apt-get requires vtk-6.3, while the setup.py says you should have vtk-7. So... conflict cannot be solved I guess.

install via pip.

1. python-pcl from pip requires libpcl-1.7, while there is only libpcl-1.8 available from apt-get. I guess the prebuild distribution has never been updated from 2016...

[xiaoFine]

I tried on Ubuntu 18.04 with conda env python=3.7, and it works for me. #317

[AndreKest]

@xiaoFine How did you install it with Python 3.7?