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 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

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)

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.

Based on input and the following steps, I got it working for shopware6 while build-administration.sh where a similar error occurred:

Error: Node Sass version 7.0.1 is incompatible with ^4.0.0.

ERROR in ./src/app/component/base/sw-button/sw-button.scss (./node_modules/mini-css-extract-plugin/dist/loader.js!./node_modules/css-loader/dist/cjs.js??ref--15-2!./node_modules/sass-loader/lib/loader.js??ref--15-3!./src/app/component/base/sw-button/sw-button.sc)
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleBuildError: Module build failed (from ./node_modules/sass-loader/lib/loader.js):
Error: Node Sass version 7.0.1 is incompatible with ^4.0.0.
    at getRenderFuncFromSassImpl (/var/ww

Checking the currently installed node-sass version and uninstalling and installing the "lower" version:

npx node-sass -v results in:
node-sass: 7.0.1
libsass 3.5.5

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

npx node-sass -v results in:
node-sass       4.14.1  (Wrapper)       [JavaScript]
libsass         3.5.5   (Sass Compiler) [C/C++]

Before that, I checked the mentioned version numbers in a complete htdocs folder:

.../htdocs$ find . -iname '*package.json*'  | xargs  grep node-sass {}

In the resulting (huge) list, the following node-sass versions are found:

....nistration/Resources/app/administration/node_modules/node-sass/package.json:    "lint": "eslint bin/node-sass lib scripts test",
./vendor/shopware/administration/Resources/app/administration/node_modules/sass-loader/package.json:    "node-sass": "^4.5.0",
grep: {}: Datei oder Verzeichnis nicht gefunden
./vendor/shopware/administration/Resources/app/administration/node_modules/stylelint-webpack-plugin/package.json:    "node-sass",
./vendor/shopware/administration/Resources/app/administration/build/nuxt-component-library/package.json:        "node-sass": "4.12.0",
./vendor/shopware/administration/Resources/app/administration/package.json:    "node-sass": "^7.0.1",    <<<<<< THIS ONE !!
./vendor/shopware/administration/Resources/app/administration/package.jsonORIG-2021-12-29:    "node-sass": "^7.0.1",

After uninstalling and install node-sass@4.14.1 and changing the marked line from

"node-sass": "^7.0.1",

to

"node-sass": "^4.0.1",

it compiled and build-administration.sh (a shopware6 thing...) succeeded.

Time: 58913ms
Entrypoint commons = static/js/runtime.js static/css/vendors-node.css static/js/vendors-node.js static/js/vendors-node.js.map static/js/commons.js
Entrypoint app = static/js/runtime.js static/css/vendors-node.css static/js/vendors-node.js static/js/vendors-node.js.map static/css/app.css static/js/app.js
Entrypoint storefront = static/js/runtime.js static/css/vendors-node.css static/js/vendors-node.js static/js/vendors-node.js.map static/css/storefront.css static/js/storefront.js
Entrypoint payone-payment = static/js/runtime.js static/css/vendors-node.css static/js/vendors-node.js static/js/vendors-node.js.map static/css/payone-payment.css static/js/payone-payment.js
Entrypoint wbm-tag-manager-ecomm = static/js/runtime.js static/css/vendors-node.css static/js/vendors-node.js static/js/vendors-node.js.map static/css/wbm-tag-manager-ecomm.css static/js/wbm-tag-manager-ecomm.js
   3909 modules
build-administration.sh: 14: build-administration.sh: [[: not found
Copying files for bundle: FrameworkBundle
Copying files for bundle: MonologBundle
Copying files for bundle: SwiftmailerBundle
Copying files for bundle: SensioFrameworkExtraBundle
Copying files for bundle: TwigBundle
Copying files for bundle: EnqueueBundle
Copying files for bundle: EnqueueAdapterBundle
Copying files for bundle: Framework
Copying files for bundle: System
Copying files for bundle: Content
Copying files for bundle: Checkout
Copying files for bundle: Administration
Copying files for bundle: Storefront
Copying files for bundle: Elasticsearch
Copying files for bundle: SwagPlatformDemoData
Copying files for bundle: Netzp6AddressValidator
Copying files for bundle: PayonePayment
Copying files for bundle: WbmTagManagerEcomm
Copying files for bundle: DbalKernelPluginLoader


 [OK] Successfully copied all bundle files

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

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