javascript-typescript-langserver | TypeScript code intelligence through the Language Server

The issue is because jupyter server is unable to find the language servers. As in my case, jupyter is installed and maintained using conda environment(miniconda) under /opt/miniconda3/, whilst my nodejs is sitting under /usr/local/. Ideally, if you are already using conda manager, you will want to uninstall nodejs completely and reinstall it using conda. Otherwise, remove the entire anaconda/conda and then reinstall python (https://www.python.org/downloads/release/python-381/) and jupyter using either pip or brew depending how/where you installed nodejs.

I was able to resolve my issue following below steps:

1.) Completely uninstall node js. I was able to do it by running nvm uninstall or if you are using homebrew, run brew uninstall node and then rm -f /usr/local/bin/npm on terminal. Additionally, you can follow below reference: How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)

2.) Reinstall nodejs. conda install -c conda-forge nodejs

3.) Install the language servers. See reference: https://github.com/krassowski/jupyterlab-lsp/blob/master/LANGUAGESERVERS.md#installing-language-servers

4.) Restart terminal and run jupyter lab.

Now this is the best answer that I have that was able to resolve my issue.