安装 uView 报错

报的是这个错？？？！！！找这个问题，找的我头皮发麻

10:37:41.657 Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
10:37:41.659 ModuleBuildError: Module build failed (from ./node_modules/postcss-loader/src/index.js):
10:37:41.680 SyntaxError
10:37:41.680 (113:12) Unknown word
10:37:41.692   111 | // 定义flex等分
10:37:41.693   112 | @for $i from 0 through 12 {
    
    
10:37:41.707 > 113 | 	.u-flex-#{
    
    $i} {
    
    
10:37:41.708       | 	          ^
10:37:41.717   114 | 		flex: $i;
10:37:41.717   115 | 	}
10:37:41.724     at runLoaders (D:\HBuilderX.3.1.4.20210305.full\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\NormalModule.js:316:20)
10:37:41.725     at D:\HBuilderX.3.1.4.20210305.full\HBuilderX\plugins\uniapp-cli\node_modules\loader-runner\lib\LoaderRunner.js:367:11
10:37:41.732     at D:\HBuilderX.3.1.4.20210305.full\HBuilderX\plugins\uniapp-cli\node_modules\loader-runner\lib\LoaderRunner.js:233:18
10:37:41.732     at context.callback (D:\HBuilderX.3.1.4.20210305.full\HBuilderX\plugins\uniapp-cli\node_modules\loader-runner\lib\LoaderRunner.js:111:13)
10:37:41.737     at Promise.resolve.then.then.catch (D:\HBuilderX.3.1.4.20210305.full\HBuilderX\plugins\uniapp-cli\node_modules\postcss-loader\src\index.js:207:9)
10:37:41.738     at <anonymous>

后面发现是 lang="scss" ,在 uni.scss 这个文件

答应我一定要把 lang="scss" 写上好嘛