vue-cli@3 没有可用于依赖类型的模块工厂：CssDependency

Question

当我使用 vue-cli@3 到

npm run build

系统提示生成此错误No module factory available for dependency type: CssDependency

相关问题搜了很多，都是angular，我也试了

rm -r node_modules
rm包-lock.json
npm i

但是还是出现这个错误，我想知道如何解决这个问题

这是我的错误的详细信息

ERROR  Error: No module factory available for dependency type: CssDependency
Error: No module factory available for dependency type: CssDependency
    at addDependency (E:\Games\hitokoto\node_modules\webpack\lib\Compilation.js:800:12)
    at iterationOfArrayCallback (E:\Games\hitokoto\node_modules\webpack\lib\Compilation.js:208:3)
    at addDependenciesBlock (E:\Games\hitokoto\node_modules\webpack\lib\Compilation.js:816:5)
    at Compilation.processModuleDependencies (E:\Games\hitokoto\node_modules\webpack\lib\Compilation.js:827:4)
    at afterBuild (E:\Games\hitokoto\node_modules\webpack\lib\Compilation.js:954:15)
    at buildModule.err (E:\Games\hitokoto\node_modules\webpack\lib\Compilation.js:998:11)
    at callback (E:\Games\hitokoto\node_modules\webpack\lib\Compilation.js:734:5)
    at module.build.error (E:\Games\hitokoto\node_modules\webpack\lib\Compilation.js:782:12)
    at handleParseResult (E:\Games\hitokoto\node_modules\webpack\lib\NormalModule.js:478:12)
    at doBuild.err (E:\Games\hitokoto\node_modules\webpack\lib\NormalModule.js:500:6)
    at runLoaders (E:\Games\hitokoto\node_modules\webpack\lib\NormalModule.js:358:12)
    at E:\Games\hitokoto\node_modules\loader-runner\lib\LoaderRunner.js:373:3
    at iterateNormalLoaders (E:\Games\hitokoto\node_modules\loader-runner\lib\LoaderRunner.js:214:10)
    at E:\Games\hitokoto\node_modules\loader-runner\lib\LoaderRunner.js:186:6
    at context.callback (E:\Games\hitokoto\node_modules\loader-runner\lib\LoaderRunner.js:111:13)
    at childCompiler.runAsChild (E:\Games\Hitokoto\node_modules\mini-css-extract-plugin\dist\loader.js:198:12)
    at compile (E:\Games\hitokoto\node_modules\webpack\lib\Compiler.js:343:11)
    at hooks.afterCompile.callAsync.err (E:\Games\hitokoto\node_modules\webpack\lib\Compiler.js:681:15)
    at AsyncSeriesHook.eval [as callAsync] (eval at create (E:\Games\hitokoto\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:15:1)
    at AsyncSeriesHook.lazyCompileHook (E:\Games\hitokoto\node_modules\tapable\lib\Hook.js:154:20)
    at compilation.seal.err (E:\Games\hitokoto\node_modules\webpack\lib\Compiler.js:678:31)
    at AsyncSeriesHook.eval [as callAsync] (eval at create (E:\Games\hitokoto\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)
E:\Games\hitokoto\node_modules\neo-async\async.js:16
    throw new Error('Callback was already called.');

下面是我的package.json文件

{
  "name": "hitokoto",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "core-js": "^3.4.4",
    "jquery": "^3.4.1",
    "jquery-ui": "^1.12.1",
    "vue": "^2.6.10",
    "vue-router": "^3.1.3"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "^4.1.0",
    "@vue/cli-plugin-eslint": "^4.1.0",
    "@vue/cli-plugin-router": "^4.1.0",
    "@vue/cli-service": "^4.1.0",
    "@vue/eslint-config-prettier": "^5.0.0",
    "babel-eslint": "^10.0.3",
    "eslint": "^5.16.0",
    "eslint-plugin-prettier": "^3.1.1",
    "eslint-plugin-vue": "^5.0.0",
    "prettier": "^1.19.1",
    "stylus": "^0.54.7",
    "stylus-loader": "^3.0.2",
    "vue-template-compiler": "^2.6.10"
  }
}

Answer 1

我遇到了同样的问题，发现它与运行宁 [=22] 时使用的路径的 upper/lower 大小写有关=]npm 运行 build 命令。

使用 Powershell 或 cmd，我这样做了：

C:\> cd C:\git\testing C:\git\testing> npm run build

得到了和你一样的错误。

然后我这样做了（注意大写GIT）：

C:\>cd C:\GIT\testing C:\GIT\testing> npm run build

然后就成功了。我在 Windows 10.

Answer 2

这可能是由 MiniCssExtractPlugin 引起的，它应该同时使用 module/rules 和 plugins

const MiniCssExtractPlugin = require('mini-css-extract-plugin');
//define module\rules
{
    test:/\.css$/, 
    use:[{loader: MiniCssExtractPlugin.loader},{loader:'css-loader'}]
},

//set plugins
plugins:[
 new vueLoaderPlugin(), new MiniCssExtractPlugin()
]

更多信息请看这里：https://github.com/webpack-contrib/mini-css-extract-plugin/issues/493

Answer 3

你也可以试试这个。这种方法对我有用。在您的 vue.config.js 中添加：

css: {
 extract: false
}

Answer 4

在我的例子中，我执行了

npm run build

来自 GIT bash 并且遇到了这个问题。可能是由于文件路径大小写 (upper/lower) 问题。我切换回正常的命令行，它正在工作。

vue-cli@3 没有可用于依赖类型的模块工厂：CssDependency

vue-cli@3 No module factory available for dependency type: CssDependency

javascript

webpack

vue.js

vue-cli