Javascript error when rendering

[StrongWeiUMN]

When I run the example code, the Javascript error will raise, and cannot render the figure:

from pythreejs import *
from IPython.display import display
import ipywidgets

# Reduce repo churn for examples with embedded state:
from pythreejs._example_helper import use_example_model_ids
use_example_model_ids()

ball = Mesh(geometry=SphereGeometry(),
            material=MeshLambertMaterial(color='red'))
key_light = DirectionalLight(color='white', position=[3, 5, 1], intensity=0.5)

c = PerspectiveCamera(position=[0, 5, 5], up=[0, 1, 0], children=[key_light])

scene = Scene(children=[ball, c, AmbientLight(color='#777777')], background=None)

renderer = Renderer(camera=c,
                    scene=scene,
                    alpha=True,
                    clearOpacity=0,
                    controls=[OrbitControls(controlling=c)])
display(renderer)

The following is the raised error:

[Open Browser Console for more detailed log - Double click to close this message]
Model class 'RendererModel' from module 'jupyter-threejs' is loaded but can not be instantiated
TypeError: Cannot read properties of undefined (reading 'then')
    at http://localhost:8888/lab/extensions/jupyter-threejs/static/jupyter-threejs-chunk.ba1735fea70611ab4bc1.js?v=ba1735fea70611ab4bc1:1:32057
    at async Promise.all (index 20)
    at async f._make_model (http://localhost:8888/static/lab/4416.0944956f5de66ec0a0b0.js?v=0944956f5de66ec0a0b0:1:9684)

The following is the conda environment:

jupyter_client            8.1.0              pyhd8ed1ab_0    conda-forge
jupyter_core              5.3.0           py310h5588dad_0    conda-forge
jupyter_events            0.6.3              pyhd8ed1ab_0    conda-forge
jupyter_server            2.5.0              pyhd8ed1ab_0    conda-forge
jupyter_server_terminals  0.4.4              pyhd8ed1ab_1    conda-forge
jupyterlab                3.5.0              pyhd8ed1ab_0    conda-forge
jupyterlab_pygments       0.2.2              pyhd8ed1ab_0    conda-forge
jupyterlab_server         2.21.0             pyhd8ed1ab_0    conda-forge
jupyterlab_widgets        3.0.7              pyhd8ed1ab_0    conda-forge
pythreejs                 2.4.2              pyh1d7be83_0    conda-forge

[moorepants]

This seems to be the same as what is discussed in #389.

[StrongWeiUMN]

The problem is solved by degrading the packages:
NVlabs/sionna#106