如何在Nuxt中设置SASS/SCSS/SASS-LOADER [英] How to setup SASS/SCSS/sass-loader in Nuxt

问题描述

我有Nuxt应用程序，并且我想使用CSS预处理器。
我安装了sass-loader纤程依赖项，但安装后，应用程序控制台中会出现一条消息，我在映像和代码中显示了该消息

这是代码错误：

 WARN  webpack@5.49.0 is installed but ^4.46.0 is expected                                                                                                                                                                     17:22:44


 WARN  sass-loader@12.1.0 is installed but ^10.1.1 is expected

     


Rule can only have one resource source (provided resource and test + include + exclude) in {                                                                                                                           17:22:46
  "use": [
    {
      "loader": "/home/sergey/all_project/pro_projects_all_language/empty/node_modules/babel-loader/lib/index.js",
      "options": {
        "configFile": false,
        "babelrc": false,
        "cacheDirectory": true,
        "envName": "server",
        "presets": [
          [
            "/home/sergey/all_project/pro_projects_all_language/empty/node_modules/@nuxt/babel-preset-app/src/index.js",
            {
              "corejs": {
                "version": 3
              }
            }
          ]
        ]
      },
      "ident": "clonedRuleSet-29[0].rules[0].use[0]"
    }
  ]
}

  "use": [
  {
  "loader": "node_modules/babel-loader/lib/index.js",
  "options": {
  "configFile": false,
  "babelrc": false,
  "cacheDirectory": true,
  "envName": "server",
  "presets": [
  [
  "node_modules/@nuxt/babel-preset-app/src/index.js",
  {
  "corejs": {
  "version": 3
  }
  }
  ]
  ]
  },
  "ident": "clonedRuleSet-29[0].rules[0].use[0]"
  }
  ]
  }
  at checkResourceSource (node_modules/@nuxt/webpack/node_modules/webpack/lib/RuleSet.js:167:11)
  at Function.normalizeRule (node_modules/@nuxt/webpack/node_modules/webpack/lib/RuleSet.js:198:4)
  at node_modules/@nuxt/webpack/node_modules/webpack/lib/RuleSet.js:110:20
  at Array.map (<anonymous>)
  at Function.normalizeRules (node_modules/@nuxt/webpack/node_modules/webpack/lib/RuleSet.js:109:17)
  at new RuleSet (node_modules/@nuxt/webpack/node_modules/webpack/lib/RuleSet.js:104:24)
  at new NormalModuleFactory (node_modules/@nuxt/webpack/node_modules/webpack/lib/NormalModuleFactory.js:115:18)
  at Compiler.createNormalModuleFactory (node_modules/@nuxt/webpack/node_modules/webpack/lib/Compiler.js:636:31)
  at Compiler.newCompilationParams (node_modules/@nuxt/webpack/node_modules/webpack/lib/Compiler.js:653:30)
  at Compiler.compile (node_modules/@nuxt/webpack/node_modules/webpack/lib/Compiler.js:661:23)
  at node_modules/@nuxt/webpack/node_modules/webpack/lib/Watching.js:77:18
  at AsyncSeriesHook.eval [as callAsync] (eval at create (node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:24:1)
  at AsyncSeriesHook.lazyCompileHook (node_modules/tapable/lib/Hook.js:154:20)
  at Watching._go (node_modules/@nuxt/webpack/node_modules/webpack/lib/Watching.js:41:32)
  at node_modules/@nuxt/webpack/node_modules/webpack/lib/Watching.js:33:9
  at Compiler.readRecords (node_modules/@nuxt/webpack/node_modules/webpack/lib/Compiler.js:529:11)

我尝试重新安装依赖项，重新安装完全干净的Nuxt应用程序，但问题仍然存在。

推荐答案

若要在Nuxt中安装sass，您必须运行yarn add -D sass sass-loader@10.1.1(或npm i -D sass-loader@10.1.1 --save-exact && npm i -D sass)。

sass-loader的版本需要准确，并设置为最新的10.x.x，因为下一个版本(11.0.0)使用的是WebPack5，因此是一个突破性的更改，因为Nuxt2仅在WebPack4上运行，如下所示：https://github.com/webpack-contrib/sass-loader/releases

如果则仍无法在.vue组件中使用<style lang="sass">，然后继续。

---

将此文件添加到您的nuxt.config.js文件

export default {
  build: {
    loaders: {
      sass: {
        implementation: require('sass'),
      },
      scss: {
        implementation: require('sass'),
      },
    },
  }
}

以下是working repo最新推荐的sass(dart-sass)安装程序，可以使用此类代码正常运行

<template>
  <div>
    <span class="test">
      Hello there
    </span>
  </div>
</template>

<style lang="sass" scoped>
div
  .test
    color: red
</style>

PS：如果正确安装了SASS，则SCSS工作正常，因为它们基本上是一样的。

---

如果您对某些内容(如/ for divison或此处列出的任何内容)有一些警告：https://sass-lang.com/documentation/breaking-changes
您可以参考此答案获取解决方案：https://stackoverflow.com/a/68648204/8816585

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