widgets and pane not shown

[gorkir]

Hi, I have installed panel version 1.0 and found that in Jupyter-lab widgets and pane not show.
I read the sugestions about "For versions of jupyterlab>=3.0 the necessary extension is automatically bundled in the pyviz_comms package, which must be >=2.0." . The version of Jupyter-lab is 3.5 and of the pacjkage pyviz_comms 2.0.2.

Example from panel dev website:
import panel as pn
pn.extension()
pane = pn.panel('Here is some custom HTML')
pane

The pane is not shown, but when I run
print(pane)
is shown
Markdown(str)

[philippjfr]

I'm working on improving this workflow before full release but can you try following these steps:

1. Close all but on JupyterLab tab
2. Restart and Clear all outputs

3. Save the notebook 4. Reload the browser page 5. Rerun the notebook

[gorkir]

Yes, it works.
Thanks

[philippjfr]

Should be fixed permanently by #4752