i had the same problem with sass and i run this commands like below but none of them works.

npm uninstall node-sass

npm install sass

so finally i take a look at my package.json and i saw that i installed sass-loader so i'm uninstall and install that and the problem is fixed. you can use commands below for that.

npm uninstall sass-loader

npm install sass-loader

You can just switch to sass

in your package.json 

 "node-sass": "npm:sass@^1.49.9",

explanation

React still asks for node-sass after removing it and replacing with sass so you can alias it like this and now react will use sass

If you want to use SCSS and Sass in your React app, try to do this:

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!

I got the same issue. At the time of installing 'node-sass', my Node.js version is 15.

After downgrading node version node-12 and installed node-12 related 'node-sass' it's worked fine.

node -v

# Output: v15.2.0

nvm use 12.18.3

Now using node v12.18.3 (npm v6.14.6)

node -v

# Output: v12.8.3

npm install node-sass@4.14.1

To make sure it's working properly, add some abc.sass file. And write styles and import it on the component.

I got this error two months back. I tried each and every solution I can probably find.

Check whether you have created multiple React projects on the desktop. I did the same and started facing this issue. Combine all of them inside a single folder to get rid of the error. It worked for me. Please try this if you are making the same mistake.

Don't use node-sass anymore

node-sass is deprecated. Instead use sass.

You can uninstall the old and install the new one

npm uninstall node-sass

npm install sass

But if you prefer to use node-sass

You can use the following table to install the appropriate version node-sass for your installed node version which you can check by the command node --version

npm install node-sass@(your version)

You can simply do npm install node-sass@6.0.

This is because Node.js 16 is compatible with node-sass version 6.0.

I figured out this issue using node-sass version 4.14.1 with the following commands.

With npm

npm uninstall node-sass
npm install node-sass@4.14.1

With yarn

yarn remove node-sass
yarn add node-sass@4.14.1