Question

我尝试在webpack.config.js中添加babel-preset-stage 0 以下是我配置的代码：

＆＃13;

module.exports = {
  entry: './app/app.jsx',
  output: {
    path: __dirname,
    filename: './public/bundle.js'
  },
  resolve: {
    root: __dirname,
    alias: {
    },
    extensions: ['', '.js', '.jsx']
  },
  module: {
    loaders: [
      {
        loader: 'babel-loader',
        query: {
          presets: ['stage-0', 'react', 'es2015']
        },
        test: /\.jsx?$/,
        exclude: /(node_modules|bower_components)/
      }
    ]
  }
};

＆＃13;

但是，我最终得到了这个错误：

＆＃13;

ERROR in ./app/app.jsx
Module build failed: TypeError: Path must be a string. Received undefined
    at assertPath (path.js:28:11)
    at Object.dirname (path.js:1345:5)
    at /Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:374:36
    at /Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:396:22
    at Array.map (native)
    at OptionManager.resolvePresets (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:385:20)
    at OptionManager.mergePresets (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:369:10)
    at OptionManager.mergeOptions (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:328:14)
    at /Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:370:14
    at /Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:390:24
    at Array.map (native)
    at OptionManager.resolvePresets (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:385:20)
    at OptionManager.mergePresets (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:369:10)
    at OptionManager.mergeOptions (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:328:14)
    at OptionManager.init (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/options/option-manager.js:481:10)
    at File.initOptions (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/index.js:211:75)
    at new File (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/file/index.js:129:22)
    at Pipeline.transform (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-core/lib/transformation/pipeline.js:48:16)
    at transpile (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-loader/index.js:14:22)
    at Object.module.exports (/Users/annguyen/Documents/React/ReactWeather/node_modules/babel-loader/index.js:88:12)

＆＃13;

当我删除＆＃39; stage-0＆＃39;在预设中，它工作得非常好。这是我的开发依赖项：

＆＃13;

"devDependencies": {
    "babel-core": "^6.5.1",
    "babel-loader": "^6.2.2",
    "babel-preset-es2015": "^6.5.0",
    "babel-preset-react": "^6.5.0",
    "babel-preset-stage-0": "^6.24.1",
    "webpack": "^1.12.13"
  }

＆＃13;

Answer 1

建议您在项目的根目录中添加.babelrc，然后：

{
  "presets": [
    "es2015",
    "stage-0",
    "react"
  ]
}

在Webpack中配置Babel-preset-stage-0

1 个答案: