Hello, I have experimented several dissapointing errors when working with updated Pillar tools. I am not doing anything special besides working under Windows. Apparently the Pillar CommandLineHandler is not working because OSEnvironment exception (Windows 8.1). When executing Pharo.exe Pillar.image export --to=html BioPharo.pier The attached exception raises. This happens in all the images from: https://ci.inria.fr/pharo-contribution/job/Pillar/PHARO=40,VERSION=stable,VM... Pharo4.0 (Latest update: #40614) https://ci.inria.fr/pharo-contribution/job/Pillar/PHARO=40,VERSION=developme... Pharo4.0 (Latest update: #40614) https://ci.inria.fr/pharo-contribution/job/Pillar/PHARO=50,VERSION=stable,VM... Pharo5.0 Latest update: #50124 Changing the method #baseDirectory to use %CD% environment variable doesn't fix it even when it works in command line: c:\MySmalltalkProjects\Pillar\pharo-vm>echo %PWD% %PWD% c:\MySmalltalkProjects\Pillar\pharo-vm>echo %CD% c:\MySmalltalkProjects\Pillar\pharo-vm The solution I found was to replace the OSEnvironment line with FileSystem workingDirectory as suggested at: https://pharo.fogbugz.com/f/cases/15356/Pillar-command-line-script-doesn-t-a... About instructions given here https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessfu... you do not need MinGW to export a Pier chapter. See here https://github.com/biosmalltalk/biopharo/blob/develop/doc/pier2tex.bat for an example Another (worst) situation happened when I wanted to convert a generated LaTeX to PDF. I had to remove all tables, annotations and notes from the .pier file because errors reported in pdfLaTeX . For tables : ! Undefined control sequence. l.176 \toprule For notes (i.e. @@note ) ! LaTeX Error: Environment note undefined. See the LaTeX manual or LaTeX Companion for explanation. Type H <return> for immediate help. ... l.178 \begin{note} Finally generated PDF looks different from previous versions. Previous Pillar version: https://github.com/biosmalltalk/biopharo/blob/develop/doc/BioPharo.pier.pdf Current Pillar version (>= 0.56) : https://github.com/biosmalltalk/biopharo/blob/develop/doc/BioPharo.pdf Now I am the only one generating PDF with Pillar in Windows? Hernán