notebook and lab can't open in RTC

[xiang2002]

Can't Use RTC in jupyter notebook and jupyterlab

Error

It only be loading at all time.

Context

• Operating System and version: Linux Ubuntu 24 for jupyter and open jupyter webpage in my windows PC.
• Browser : Chrome
• Jupyter version: jupyterlab:4.2.5,notebook:7.2.2

[ellisonbg]

I am seeing the same thing on an upgraded JupyterLab 4.3.0 and jupyter-collaboration 3.0.0.

[ellisonbg]

Uninstalling jupyter-collaboration resolves the problem.

[ellisonbg]

Here is a screenshot of the browser Console when I try to create a new notebook with collaboration enabled.

[martinRenou]

Could you try removing some local .jupyter_ystore.db file, then try again?

[ellisonbg]

Do you remember which Jupyter path that is under?

[martinRenou]

It should be local to where you start jupyter lab I believe

[ellisonbg]

Thanks, confirming for others that deleting the .jupyter_ystore.db in the directory where I started the server does fix the issue. Would be great if jupyter-collaboration can auto-detect when this file needs to be deleted.

[davidbrochart]

I tried creating a notebook with jupyter-collaboration v2, then upgrading to v3 and opening the notebook again, without issue.
There is some logic to check the store file, that should create a new file in case of version mismatch. We should make sure it works fine.

[ellisonbg]

Anything else that would cause this?

[davidbrochart]

Not that I can think of, and without a reproducer it's hard to go further.