vue2老项目中node-sass更换dart-sass

更换原因：node-sass经常会出现node版本问题，就很麻烦

卸载项目中的node-sass sass-loader

npm uninstall sass-loader sass 

安装dart-sas sass-loader 推荐安装sass@1.26.2 sass-loader@7.3.1

npm install sass-loader@7.3.1 sass@1.26.2

从新配置vue.config.js

// vue.config.js module.exports = {   css: {     loaderOptions: {       sass: {         implementation: require('sass'), // This line must in sass option       },     },   } } 

然后需要全局替换一下/deep/，全局搜索 /deep/ , 将项目里的 /deep/ 替换为 ::v-deep

如果使用了stylelint，需要修改配置规则

// stylelint.config.js 	module.exports = { 	  ... 	  rules: { 	    'selector-pseudo-element-no-unknown': [ 	      true, 	      { 	        ignorePseudoElements: ['v-deep'], 	      }, 	    ], 	  }, 	  ... 	};