I was trying to install several extensions (e.g. @jupyterlab/toc-extension, @jupyterlab/debugger, @jupyterlab/apputils) but I ran into some issues:

  1. I got an “extension installation error”, where it tells me to upgrade to a newer version of JupyterLab (my current version seems to be 3.2.0).
  2. I was asked to rebuild (“A build is needed to include the latest changes”) JupiterLab.


Could I get the manager role to be able to rebuild JupyterLab to install extensions?

Is it possible for me to upgrade to a newer version of JupyterLab?


I’ve also got some questions unrelated to the problems above:

Would you recommend using JupyterLab in combination with Coscine (https://coscine.rwth-aachen.de/)?

If I’m working with industry data, which is not meant to be shared with other people, would it be ok to use JupyterLab?

In other words: Where and in what form is data saved in JupyterLab?


Looking forward to your answers!


Kind regards,

Jakob Lötfering



Jakob Lötfering, M. Sc.
Gruppe Produktionsüberwachung
Abteilung Zerspantechnologie

Werkzeugmaschinenlabor WZL der RWTH Aachen University
Lehrstuhl für Technologie der Fertigungsverfahren
Cluster Produktionstechnik
Campus-Boulevard 30
52074 Aachen
Tel: +49 241 80-

Fax: +49 241 80-