Sass Loader Error: Invalid options object that does not match the API schema

Question

I\'m using VueJS with the framework VuetifyJS (v2.0.19). I\'m getting this error after running npm run serve:

Sass Loader has been initialise

Answer 1

change data to prependData. Final result (vue.config.js):

module.exports = {
    css: {
        loaderOptions: {
            sass: {
                prependData: `@import "@/sass/variables.sass"`
            }
        }
    }
}