Jupyter Notebook javascript error when trying to display the widgets

Question

I am currently working on a EDA Project using ydata_profiling library.

This is the code i have written as of now:

import numpy as np
import pandas as pd
from ydata_profiling import ProfileReport

profile = ProfileReport(df, title='Pandas Profiling Report', explorative=True)

profile.to_widgets() 

On displaying this .to_widgets() code, a summary of my data appears, but under the variables section i get this javascript error:

[Open Browser Console for more detailed log - Double click to close this message]
Model class 'AccordionModel' from module '@jupyter-widgets/controls' is loaded but can not be instantiated
Error: widget model not found 
at f.get_model (http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/336.0a90bd910629a565bb7e.js?v=0a90bd910629a565bb7e:1:3460)
    at P (http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/595.998263bfa9875eeeb29b.js?v=998263bfa9875eeeb29b:1:6289)
    at Object.P [as deserialize] (http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/595.998263bfa9875eeeb29b.js?v=998263bfa9875eeeb29b:1:6099)
    at kt._deserialize_state (http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/595.998263bfa9875eeeb29b.js?v=998263bfa9875eeeb29b:1:12378)
    at f._make_model (http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/336.0a90bd910629a565bb7e.js?v=0a90bd910629a565bb7e:1:7932)
Report generated by YData.

I would really appreciate some suggestions or fixes for this.

Solution: Please don't overlook updating the version of your jupyter notebook. I updated the entire jupyter notebook environment and reloaded and issue got resolved. Run commands like :

jupyter notebook --version

pip install --upgrade notebook

Answer 1

Jupyter Lab issue displaying widgets (javascript error) received several relevant answers, none of them being a definite answer on its own. This suggests:

• that you should update ipywidgets because some versions have been reported to cause this issue, e.g. 7.7.2 (this answer: https://stackoverflow.com/a/73733358/12846804)
• that this might also arise from outdated jupyter notebook version, as some versions require manual activation of widgets (this answer: https://stackoverflow.com/a/76946167/12846804)

So, first step is making sure the whole environment is up to date, starting with conda, then Jupyter and ipywidgets.

---

A couple notes:

• Caution: Because you are using conda, do stick to conda and not mix in some pip commands, because those are not going to install things at the same location, so you're asking for trouble.
• Since you're updating, consider making the move from Jupyter to JupyterLab.