Hello Pascal.
Hello,
I would like to report the following problem.
I use emacs 26.1, with org-mode version 9.1.9 on Windows.
Using emacs with no customization (-Q option) I get an error when
publishing an Org file to html. Org asks for htmlize.
,----
| org-babel-exp process emacs-lisp at position 10935...
| org-babel-exp process nil at position 11208...
| org-babel-exp process emacs-lisp at position 11275...
| org-html-fontify-code: Please install htmlize from https://github.com/hniksic/emacs-htmlize
`----
With htmlize loaded, there is no problem.
Kaushal Modi