Failed to register jupyter_bokeh

[obrown06]

I'm trying to integrate a Tabulator into a Voila application as follows:

import pandas as pd
import panel as pn
pn.extension('tabulator')

df = pd.DataFrame(...)
df_widget = pn.ipywidget(pn.widgets.Tabulator(df))

I'm getting the following rendered error:

Failed to load model class 'BokehModel' from module '@bokeh/jupyter_bokeh'

And the following errors in the javascript console:

Plugin '@bokeh/jupyter_bokeh' failed to activate.
TypeError: No provider for: jupyter.extensions.jupyterWidgetRegistry.
Error: No version of module @bokeh/jupyter_bokeh is registered

The relevant package versions:

bokeh                     3.4.0
ipywidgets                8.1.2
jupyter                   1.0.0
jupyter_bokeh             4.0.1
jupyterlab                4.0.11
jupyterlab_widgets        3.0.10
panel                     1.4.1
python                    3.10.14

Anyone have an idea what might be going wrong here? Happy to redirect the query elsewhere if this isn't the right place. Thanks!

[bryevdv]

According to a Jupyter core dev

That indicates that the Jupyter widgets extension is not installed. Assuming your server is running jlab 3, it can be installed by installing ipywidgets 7.6+ or by installing jupyterlab_widgets 1.0+.

Is it possible you have an environment mixup and jupyterlab_widgets is not installed in the same environment you think it is?

Edit: But I guess that thread goes on to indicate that other scenarios can also cause this to happen. That's outside my expertise thought cc @philippjfr @mattpap

[obrown06]

FWIW: I'm using Conda and it seems like jupyterlab_widgets is definitely installed:

conda list | grep jupyterlab_widgets
jupyterlab_widgets        3.0.10

[obrown06]

Also, it looks like at least someone else may be hitting the same issue: https://community.deeplearning.ai/t/replicating-chatbot-implementation-with-huggingface-open-source-models/596117.

[Kalandoros]

I got the same issue. This is not new issue.
It's already persising for longer

jupyter_bokeh 4.0.4
jupyter_client 8.1.0
jupyter_core 5.3.0
jupyter-events 0.7.0
jupyter-lsp 2.2.0
jupyter_server 2.7.3
jupyter_server_terminals 0.4.4
jupyterlab 4.2.1
jupyterlab-pygments 0.2.2
jupyterlab_server 2.27.2
jupyterlab_widgets 3.0.10
panel 1.4.3
voila 0.5.7

labextensions:
@bokeh/jupyter_bokeh v4.0.4 enabled ok (python, jupyter_bokeh)
@pyviz/jupyterlab_pyviz v3.0.2 enabled ok

You may also have a look here: voila-dashboards/voila#1435
I am pretty sure that this is related. Unfortunately, due to a lack of knowledge, I am not in a position to make any further investigatens.