最近在學習vue框架，使用webpack打包vue項目，在執行npm run start的時候 出現如下錯誤：

This dependency was not found:

* !!vue-style-loader!css-loader?{"minimize":false,"sourceMap":false}!../../node_modules/vue-loader/lib/style-compiler/index?{"vue":true,"id":"data-v-1d57e5ea","scoped":false,"hasInlineConfig":false}!stylus-loader?{"sourceMap":false}!../../node_modules/vue-loader/lib/selector?type=styles&index=0!./a.vue in ./src/components/a.vue

To install it, you can run: npm install --save !!vue-style-loader!css-loader?{"minimize":false,"sourceMap":false}!../../node_modules/vue-loader/lib/style-compiler/index?{"vue":true,"id":"data-v-1d57e5ea","scoped":false,"hasInlineConfig":false}!stylus-loader?{"sourceMap":false}!../../node_modules/vue-loader/lib/selector?type=styles&index=0!./a.vu

解決思路：

npm intall sass-loader --save;

npm install node-sass --save;

然後運行npm run start就可以

vue+webpack安裝sass過程中遇到權限不夠，直接刪除node_modus文件夾重新安裝，node_modus先取得管理員權限才能刪