Kepler.gl: [Bug][Jupyter Widget] "Error displaying widget" on new installations regardless of version

[itamar-otonomo]

Describe the bug
When installing a fresh jupyterlab and following the installation instructions the widget fails with "Error displaying widget".

To Reproduce
Steps to reproduce the behavior:

1. install a fresh jupyter lab setup (I tried both mac and Linux with node 8.17 to 12.x)
2. follow the installation instructions in the kepler.gl-jupyter dir
3. try viewing a map in a lab session.

Expected behavior
well, see the widget and not an error

Screenshots

Environment (please complete the following information):

• Python version: python3
• keplergl Widget, I tried both 0.1.0 and 0.1.2. both fail.

Additional context
while trying to figure this out, I came upon a setup that was installed in the past with v0.1.0 and worked.
reinstalling (no matter which version) caused the issue to manifest itself. feels to me like its an updated dependency that causes this issue.

Thanks a bunch,
Itamar

[Rendiere]

+1 - experiencing exactly the same behaviour. I have KeplerGL working on a separate virtual env on the same machine, but the latest install prints out "Error displaying widget" where it should show a map.

[itamar-otonomo]

Is anyone else still experiencing the issue?
I really miss that capability!

[zac-yang]

+1 to this. We have the following environment, would love if anyone has any tips

python 3.7.6
keplergl 0.1.2
jupyterlab 1.2.4
ipywidgets 7.5.1
geopandas 0.5.0
pandas 1.0.1
Shapely 1.7.0
traitlets 4.3.2
traittypes 0.2.1

[n0012]

Same issue for me.

JupyterLab v1.2.6

jupyter labextension list
@jupyter-widgets/jupyterlab-manager v1.1.0 enabled OK
keplergl-jupyter v0.1.2 enabled OK

[n0012]

@heshan0131 Please review and let us know your thoughts. I've followed the install guide for jupyterlab but continue to get this error

[n0012]

Here's the console output received when the "Error displaying widget" message appears: