Last try with before script

1 job for pages in 35 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Deploy
failed #86323
pages

00:00:35

 
Name Stage Failure
failed
pages Deploy
Successfully installed MarkupSafe-1.1.1 attrs-19.1.0 bleach-3.1.0 decorator-4.4.0 defusedxml-0.6.0 entrypoints-0.3 ipython-genutils-0.2.0 jinja2-2.10.1 jsonschema-3.0.1 jupyter-core-4.5.0 mistune-0.8.4 nbconvert-5.5.0 nbformat-4.4.0 pandocfilters-1.4.2 pygments-2.4.2 pyrsistent-0.15.2 six-1.12.0 testpath-0.4.2 traitlets-4.3.2 webencodings-0.5.1
$ which make
/usr/bin/make
$ make presentations
jupyter-nbconvert ipynb/11_pandas.ipynb --reveal-prefix='./reveal.js' --to slides --template ipynb/slides_reveal.tpl
make: jupyter-nbconvert: Command not found
make: *** [ipynb/11_pandas.slides.html] Error 127
Makefile:46: recipe for target 'ipynb/11_pandas.slides.html' failed
ERROR: Job failed: exit code 1