字段“browser”不包含有效的别名配置

我已经开始使用webpack2(准确地说，v2.3.2)，在重新创建我的配置后，我一直遇到一个问题，我似乎无法解决我得到(提前为丑陋的转储道歉):

ERROR in ./src/main.js
Module not found: Error: Can't resolve 'components/DoISuportIt' in '[absolute path to my repo]/src'
resolve 'components/DoISuportIt' in '[absolute path to my repo]/src'
  Parsed request is a module
  using description file: [absolute path to my repo]/package.json (relative path: ./src)
    Field 'browser' doesn't contain a valid alias configuration
    aliased with mapping 'components': '[absolute path to my repo]/src/components' to '[absolute path to my repo]/src/components/DoISuportIt'
      using description file: [absolute path to my repo]/package.json (relative path: ./src)
        Field 'browser' doesn't contain a valid alias configuration
      after using description file: [absolute path to my repo]/package.json (relative path: ./src)
        using description file: [absolute path to my repo]/package.json (relative path: ./src/components/DoISuportIt)
          as directory
            [absolute path to my repo]/src/components/DoISuportIt doesn't exist
          no extension
            Field 'browser' doesn't contain a valid alias configuration
            [absolute path to my repo]/src/components/DoISuportIt doesn't exist
          .js
            Field 'browser' doesn't contain a valid alias configuration
            [absolute path to my repo]/src/components/DoISuportIt.js doesn't exist
          .jsx
            Field 'browser' doesn't contain a valid alias configuration
            [absolute path to my repo]/src/components/DoISuportIt.jsx doesn't exist
[[absolute path to my repo]/src/components/DoISuportIt]
[[absolute path to my repo]/src/components/DoISuportIt]
[[absolute path to my repo]/src/components/DoISuportIt.js]
[[absolute path to my repo]/src/components/DoISuportIt.jsx]

package.json

{
  "version": "1.0.0",
  "main": "./src/main.js",
  "scripts": {
    "build": "webpack --progress --display-error-details"
  },
  "devDependencies": {
    ...
  },
  "dependencies": {
    ...
  }
}

关于它所抱怨的浏览器字段，我能够找到的文档是:package-browser-field-spec。也有webpack文档，但它似乎默认开启:aliasFields: ["browser"]。我尝试在我的包中添加一个浏览器字段。Json，但这似乎没有任何好处。

webpack.config.js

import path from 'path';
const source = path.resolve(__dirname, 'src');

export default {
  context: __dirname,
  entry: './src/main.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].js',
  },
  resolve: {
    alias: {
      components: path.resolve(__dirname, 'src/components'),
    },
    extensions: ['.js', '.jsx'],
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        include: source,
        use: {
          loader: 'babel-loader',
          query: {
            cacheDirectory: true,
          },
        },
      },
      {
        test: /\.css$/,
        include: source,
        use: [
          { loader: 'style-loader' },
          {
            loader: 'css-loader',
            query: {
              importLoader: 1,
              localIdentName: '[path]___[name]__[local]___[hash:base64:5]',
              modules: true,
            },
          },
        ],
      },
    ],
  },
};

src / main.js

import DoISuportIt from 'components/DoISuportIt';

src /组件/ DoISuportIt / index.jsx

export default function() { ... }

为完整起见，.babelrc

{
  "presets": [
    "latest",
    "react"
  ],
  "plugins": [
    "react-css-modules"
  ],
  "env": {
    "production": {
      "compact": true,
      "comments": false,
      "minified": true
    }
  },
  "sourceMaps": true
}

我做错了什么/遗漏了什么?

当前回答

在我的情况下，这个错误是由于没有入口点被webpack发现。如果在webpack配置中没有明确定义入口点，则默认入口点为。/src/index.js 如果这样的路径不存在，您将得到这个错误。

要更改入口点的路径，请使用配置文件(https://webpack.js.org/configuration/entry-context/#root)中的入口设置。

2023-01-10 09:52:18

其他回答

对于任何构建ionic应用程序并试图上传它的人。确保你至少添加了一个平台到应用程序。否则你会得到这个错误。

2017-09-04 14:43:06

我有tsconfig.json的别名:

{
    "compilerOptions": {
        "paths": {
            "@store/*": ["./src/store/*"]
        }
    },
}

所以我通过给webpack添加别名来解决这个问题。还配置:

module.exports = {
  //...
  resolve: {
    alias: {
      '@store': path.resolve(__dirname, '../src/store'),
    },
  },
};

2022-04-21 15:09:53

在我的例子中，它是作为包中的依赖项安装的包。Json的相对路径是这样的:

"dependencies": {
  ...
  "phoenix_html": "file:../deps/phoenix_html"
},

并导入到js/app.js，导入"phoenix_html"

这是有效的，但在更新node, npm等…它失败了，出现上述错误消息。

修改导入行为import "../../deps/phoenix_html"修复它。

2017-09-23 12:46:50

在我的情况下，这是由于导入路径中的大小写敏感错别字。例如,

应该是:

import Dashboard from './Dashboard/dashboard';

而不是:

import Dashboard from './Dashboard/Dashboard';

2019-10-10 13:55:47

在Windows PowerShell上，以下命令引发此错误:

npx webpack .\src\js\main.js --output-filename output.js

正确的命令是:

npx webpack ./src/js/main.js --output-filename output.js

注意，在使用npx时，即使在Windows上，我们也必须使用Linux路径分隔符(/)。

2022-06-08 05:05:02

字段“browser”不包含有效的别名配置

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