with npm =>
1.npm uninstall node-sass
2.npm install node-sass@4.14.1
with yarn =>
1.yarn remove node-sass
2.yarn remove node-sass@4.14.1$ npm uninstall node-sass
$ npm install node-sass@4.14.1
# Or, if using yarn (default in newer CRA versions)
$ yarn remove node-sass
$ yarn add node-sass@4.14.1#Don't use node-sass anymore
#node-sass is deprecated. Instead use sass.
npm uninstall node-sass
npm install sassnpm uninstall node-sass
npm install node-sass
change the "react-scripts": "4.0.0" into "react-scripts": "4.0.3" in package.json and save
npm install
npm start
or, using yarn -
yarn remove node-sass
yarn add --dev node-sass
as above
yarn install
yarn start