Plot Issue: Failed to display Jupyter Widget of type FigureCanvasNbAgg

[rtadewald]

I'm trying to create interactive plots. My JupyterLab server is running in the cloud, in a Google Compute Engine Instance.

When I try to plot some data, i got this:

[jasongrout]

Do you have the ipywidgets and matplotlib lab extensions installed?

[jasongrout]

Do jupyter labextension list at the command line to see the extensions you've installed.

[rtadewald]

Hello, Jason,
Thanks for the help.

That's what I get:

rodrigo_tadewald@rtadewald-jupyterlab:~$ jupyter labextension list
JupyterLab v0.32.1
Known labextensions:
   app dir: /home/rodrigo_tadewald/anaconda3/share/jupyter/lab
@jupyter-widgets/jupyterlab-manager
        @jupyter-widgets/jupyterlab-manager v0.35.0  enabled  OK
@jupyterlab/plotly-extension
        @jupyterlab/plotly-extension v0.16.0  enabled  OK
jupyter-matplotlib
        jupyter-matplotlib v0.1.0  enabled  OK

[jasongrout]

And what version of ipywidgets do you have installed in the kernel? import ipywidgets; ipywidgets.__version__

[rtadewald]

My version is '7.1.1'.

[jasongrout]

Does it help to upgrade to ipywidgets 7.2? What version of ipympl do you have installed? Can you try in a fresh environment with a fresh install of ipympl? I think it has had some updates in the last few weeks.

[amueller]

Having the same issue with

JupyterLab v0.35.3
Known labextensions:
   app dir: /home/andy/anaconda3/envs/py37/share/jupyter/lab
        jupyter-matplotlib v0.3.0  enabled  OK

ipywidgets 7.4.2
ipympl 0.2.1

[amueller]

Solved, I had installed the pip way and needed to run

jupyter labextension install @jupyter-widgets/jupyterlab-manager
jupyter labextension install jupyter-matplotlib

It had prompted me if I want to install jupyter-matplotlib earlier and that ran some node installation but apparently I still needed to run these two lines.