Widget not rendering on JupyterLab examples

JupyterLab
9

Thank you @erkin98 for your response.

  1. I have added the @jupyter-widgets/jupyterlab-manager in examples/notebook with command jlpm add @jupyter-widgets/jupyterlab-manager.
  2. Then I run build with jlpm run build:examples but I still cant see ipywidgets, just plain text.

In developer console, I get error default.js:1125 Exception opening new comm.

Maybe I need some changes in index.ts code?