[SOLVED] “Module build failed: ValidationError: Invalid options object. Sass Loader has been initialized using an options object that does not match the API schema. — options has an unknown property ‘outputStyle’.”

Problem:

I’m using Vue with Laravel framework. But received the below errors after running “npm run watch” :

Solved by running the command below:

npm uninstall — save-dev sass-loader

npm install — save-dev sass-loader@7.1.0