npm ERR! 404 '@fortawesome/pro-light-svg-icons@^' is not in this registry

Updating NPM packages using npm update and I'm seeing the following response

npm ERR! code E404
npm ERR! 404 Not Found - GET https://registry.npmjs.org/@fortawesome%2fpro-light-svg-icons - Not found
npm ERR! 404
npm ERR! 404  '@fortawesome/pro-light-svg-icons@^5.11.2' is not in this registry.
npm ERR! 404
@fortawesome:registry=https://npm.fontawesome.com/
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.

npm ERR! A complete log of this run can be found in: /Users/yourname/.npm/_logs/2023-08-22T00_23_51_015Z-debug-0.log

Solution

To resolve this issue, in your theme directory where the package.json file is located check if .npmrc file exists.  If not, create it

vim .npmrc

Add or check if the following exists

@fortawesome:registry=https://npm.fontawesome.com/
//npm.fontawesome.com/:_authToken={TOKEN}

Replace {TOKEN} with your Font Awesome token value.