Error adding student multicourse

[whositwhatnow]

Operating system

CentOS7

nbgrader --version

0.6.1

jupyterhub --version (if used with JupyterHub)

1.1.0

Expected behavior

user gets added to student list DB

Actual behavior

get following error:

[DbStudentAddApp | ERROR] user NOT added to the Jupyterhub group nbgrader-course1: JupyterhubAPI returned a status code of: 400 for api_path: /groups/nbgrader-course1/users
[DbStudentAddApp | ERROR] Make sure you set a valid admin_user 'api_token' in your config file before starting the service

Steps to reproduce the behavior

I have the correct admin token listed services start no problem, students show up in the formgrader.

[rushfly]

I have same problem.

grader-cpp@jupyterhub-jupyterhub1:~$ nbgrader db student add test1
[DbStudentAddApp | INFO] Creating/updating student with ID 'test1': {'last_name': None, 'first_name': None, 'email': None, 'lms_user_id': None}
[DbStudentAddApp | ERROR] Student test1 NOT added to the Jupyterhub group nbgrader-cpp: JupyterhubAPI returned a status code of: 400 for api_path: /groups/nbgrader-cpp/users
[DbStudentAddApp | ERROR] Make sure you set a valid admin_user 'api_token' in your config file before starting the service

I saw "400" error, it's likely same with #issue-747962293 .
nbgrader turned https into http?

[rushfly]

That doesn't seem to be the case. I still got the same error when I changed it to HTTP.

It seems that nbgrader cannot automatically add system users to the jupyterhub user database.

To successfully add a user to the nbgrader database and jupyterhub groups, the user must exist in both the system and the jupyterhub user database. What a hassle.