Click on the course name in formgrader but does nothing

[xinxin2v]

Operating system

   ubuntu 22 

nbgrader --version

nbgrader --version

Python version 3.9.17 (main, Jul 5 2023, 20:41:20)
[GCC 11.2.0]
nbgrader version 0.8.5

conda list |grep nbgrader

nbgrader 0.8.5 pyhd8ed1ab_0 conda-forge

jupyterhub --version (if used with JupyterHub)

root@jpserver:/usr/local/etc# conda list |grep nbgrader
nbgrader 0.8.5 pyhd8ed1ab_0 conda-forge
root@jpserver:/usr/local/etc# jupyterhub --version
4.1.5
root@jpserver:/usr/local/etc# conda list |grep jupyterhub
jupyterhub 4.1.5 pyh31011fe_0 conda-forge
jupyterhub-base 4.1.5 pyh31011fe_0 conda-forge

jupyter notebook --version

root@jpserver:/usr/local/etc# jupyter notebook --version
6.5.6
root@jpserver:/usr/local/etc# conda list |grep notebook
notebook 6.5.6 pyha770c72_0 conda-forge
notebook-shim 0.2.4 pyhd8ed1ab_0 conda-forge

Expected behavior

A notebook opens upon clicking onto the name of an assignment. (formgrader page and there managing assignments)
i login jupyterhub, switch to notebook, then open page of Manage Assignments , when i click on the course name in formgrader , then should open assignment folder

Actual behavior

I login jupyterhub, switch to notebook, then open page of Manage Assignments , when i click on the course name in formgrader but does nothing

Steps to reproduce the behavior

Have JupyterHub with nbgrader and one classes of ps1 setup.
Go to formgrader page and there managing assignments and add an assignment or try to use the preexisting ps1 that comes with the quickstart (following the demo-setup-steps for multiple classes).

[xinxin2v]

the step i install as follow
conda install -c conda-forge notebook=6.* jupyterhub configurable-http-proxy nodejs nbgrader=0.8*

I try to use other way, but also same issue
1 conda install -c conda-forge notebook=7* jupyterhub configurable-http-proxy nodejs nbgrader
2 conda install -c conda-forge --freeze-installed jupyter_contrib_nbextensions
the second command will downgrade notebook version to 6. then sane issue

[christina-seegers]

Did you look into this issue ( #1794 ). It might provide some insight.

[xinxin2v]

Did you look into this issue ( #1794 ). It might provide some insight.

I see this Link, but didn't found solution. could you help provide more detail solution ?

And found following error. thanks in advance!

[SingleUserLabApp | WARNING] Skipping XSRF check for insecure request GET /user/vcm/formgraders
[SingleUserLabApp | INFO] 302 GET /user/vcm/formgrader/api/status -> /hub/api/oauth2/authorize?client_id=jupyterhub-user-vcm&redirect_uri=%2Fuser%2Fvcm%2Foauth_callback&response_type=code&state=[secret] (@10.200.31.89) 0.95ms
[SingleUserLabApp | ERROR] Couldn't decode response from local formgrader
[SingleUserLabApp | ERROR] Traceback (most recent call last):
File "/home/conda3/lib/python3.12/site-packages/nbgrader/server_extensions/course_list/handlers.py", line 70, in check_for_local_formgrader
response = json.loads(response.body.decode())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/conda3/lib/python3.12/json/init.py", line 346, in loads
return _default_decoder.decode(s)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/conda3/lib/python3.12/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/conda3/lib/python3.12/json/decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 2 column 1 (char 1)

[christina-seegers]

Sorry but I never found a real solution. I try with jupyterlab (so you-jupyterhub.sth/user/username/lab) but than I ran into some other issues with nbgrader, so I am not sure if this is a solution. The ananke project might include a solution (https://github.com/jeflem/ananke/tree/main), but again I can't provide more than the link.