404 on server reboot on Formgrader tab.

[danroliver]

I am getting a 404 page not found in the Formgrader tab after reboot.

I deployed to Ubuntu 16.04.3 LTS via ansible ($ ansible-playbook deploy.yml).

The versions of each component that were installed are as follows:

$ jupyterhub --version

0.7.0

$ jupyter --version

4.3.0

$ nbgrader --version

Python version 3.5.2 |Continuum Analytics, Inc.| (default, Jul 2 2016, 17:53:06)

[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]

nbgrader version 0.6.0.dev

Let me know anything else that you might need.

[danroliver]

I was able to work around this by manually updating the version of jupyterhub to 0.7.2 and NBGrader to 0.5.3, then making sure that the extension was activated again after updates. There does appear to be an issue with the versions that are installed by default via the ansible playbook, however.