nbgrader returns a 404 in Preview tab due to bad url

[rdpratti]

In a standalone environment (no JupyterHub), for an assigned assignment, clicking on the preview tab returns a 404 (see attached Preview-404.jpg)

Notice the ......JupyterNotebookscoursesCSC343 after the tree node. This is the concatented directory path with the '/'s removed. tree = c:\Jupyter\Notebooks, CourseDirectory.root = c:\Jupyter\Notebooks\courses\CSC343

If I replace it in the url

with the correct path -> courses/CSC343, then I get the correct page!

same error and symptoms occur when I click on the assignment name on the formgrader to examine the files associated with that assignment. (same workaround works as well).

I am not sure if this a config file problem on my side or a bug?

I have also attached my config file, which is stored in the .jupyter directory (with the filetype chnaged due to githubs not accepting .py)
nbgrader_config.txt
.

Thanks
rd

[jhamrick]

Hmm, this is very possibly a bug with the windows implementation. I'll investigate.

[jhamrick]

I'm unfortunately haven't trouble reproducing this. Are you still having this issue? If so, could you also paste the command line output that you get when you click the "generate" button?

[rdpratti]

Jess,

I generated the same assignment that has the other errors ( I generated it a couple of days earlier as well, that is why the removing message in the log).

Attached is a text file with both the generate popup log message and jupyter server terminal window output.
Generate-Ouput-8-13-2017.txt

Thanks

rd

[jhamrick]

Can you tell me what versions you have of the following:

• Windows
• Python
• Jupyter notebook (you can get this with jupyter notebook --version on the command line)

[rdpratti]

Here is the info:

OS Name: Microsoft Windows 10 Home
OS Version: 10.0.14393 N/A Build 14393
Python 3.5.2 :: Anaconda 4.2.0 (64-bit)
jupyter notebook --version
4.2.3

[jhamrick]

I can't test this right now unfortunately, but potentially this could be an issue with the version of the jupyter notebook? Could you try upgrading it to the latest version?