Node.js Sass version 7.0.0 is incompatible with ^4.0.0 || ^5.0.0 || ^6.0.0

First remove node-sass:

yarn remove node-sass

If you use npm:

npm uninstall node-sass

Then install sass instead of node-sass:

yarn add -D sass

or

npm i -D sass

Finally your SCSS and Sass files will be correctly compiled!

 

https://stackoverflow.com/questions/70281346/node-js-sass-version-7-0-0-is-incompatible-with-4-0-0-5-0-0-6-0-0