Background: an error is reported when installing sass for NPM

Installing sass through NPM

npm install node-sass
npm intall sass-loader

The above command installs the latest version. The reason for the error is that the latest version causes getoptions() incompatibility. The solution is to uninstall sass loader node sass and install the lower version. The commands are as follows

npm uninstall sass-loader //uninstall
npm install [email protected]  //install 8.0
npm uninstall --save node-sass
npm install [email protected]