Championrunner

This same error occurred with me, while I was adding an mp4 format file.

@anthonybench please resolve the conflicts

Are all the alerts still needed to be added or it is closed?

Is it still pending ? @zindel

You got the issue a bit right . I logged in as a professor and now I am able to preview my assignment as a student but with my account...

I added the user in jupyterhub revoking the admin rights , what I am asking is that how can that user access the assignments ? The user I created is...

Yeah I checked that but that's how we can add a new collaborator in our `nbgrader` or similar to how we add a user as an `admin` inside the jupyterHub...

#237 just solved this issue

@tangjinzhou @yesmeck @wendellhu95 @afc163 can you review these changes ?

@vagusX sure let me re-write the changes.