Ipywidgets: Widget Javascript not detected v5.2.2

[hangyao]

I'm running ipywidgets 5.2.2 on Windows, Python 3.6, and:

• Jupyter 1.0.0
• Jupyter_client 5.0.1
• Jupyter_console 5.1.0
• Jupyter_core 4.3.0

and encounter this issue:

[IPKernelApp] WARNING | Widget Javascript not detected.  It may not be installed
 properly. Did you enable the widgetsnbextension? If not, then run "jupyter nbex
tension enable --py --sys-prefix widgetsnbextension"

Also Widgets are not shown in the Notebook.

Running jupyter nbextension enable --py --sys-prefix widgetsnbextension doesn't solve the issue.

Thanks.

[jasongrout]

What version of widgetsnbextension do you have installed?

[hangyao]

@jasongrout

• widgetsnbextension 2.0.0
• notebook 5.0.0

Thanks.

[jasongrout]

Can you either:

1. upgrade to ipywidgets 6 (compatible with widgetsnbextension 2.0), or even better, ipywidgets 7 and widgetsnbextension 3
2. Downgrade widgetsnbextension to 1.2.6

[jasongrout]

@hangyao, did you get it working now?

[hangyao]

@jasongrout I got it working by upgrading to 6 or 7. Thank you! This issue can be closed.

[jasongrout]

Great, thanks!