1、项目中设置lang=“scss”，运行项目报错：

Cannot find module'node-sass'

解决：安装sass

cnpm install node-sass--save-dev

2、仍报错：

*!!vue-style-loader!css-loader?{"sourceMap":true}!../../../node_modules/vue-loader/lib/style-compiler/index?{"vue":true,"id":"data-v-dcbcd43c","scoped":true,"hasInlineConfig":false}!sass-loader?{"sourceMap":true}!../../../node_modules/vue-loader/lib/selector?type=styles&index=0!./NewsList.vue in./src/components/tabbar/NewsList.vueTo install it,you can run:npm install--save!!vue-style-loader!css-loader?{"sourceMap":true}!../../../node_modules/vue-loader/lib/style-compiler/index?{"vue":true,"id":"data-v-dcbcd43c","scoped":true,"hasInlineConfig":false}!sass-loader?{"sourceMap":true}!../../../node_modules/vue-loader/lib/selector?type=styles&index=0!./NewsList.vue

解决：

npm install sass sass-loader--save-dev