webpack打包node服务，打包报错缺失模块，但是在node_modules里面又存在

Question

webpack打包node服务，打包报错缺失模块，但是在node_modules里面又存在

发布于
2019-12-14

新手上路，请多包涵

一直报这个错误信息，在node_modules里面却一直存在，点击可以直接链接到文件内：

ERROR in ./node_modules/worker-farm/lib/fork.js
Module not found: Error: Can't resolve 'child_process' in 'K:\linshi\webpackLi\node_modules\worker-farm\lib'
 @ ./node_modules/worker-farm/lib/fork.js 3:21-45
 @ ./node_modules/worker-farm/lib/farm.js
 @ ./node_modules/worker-farm/lib/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/start-server-webpack-plugin/dist/StartServerPlugin.js
Module not found: Error: Can't resolve 'cluster' in 'K:\linshi\webpackLi\node_modules\start-server-webpack-plugin\dist'
 @ ./node_modules/start-server-webpack-plugin/dist/StartServerPlugin.js 7:15-33
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/cacache/get.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\cacache'
 @ ./node_modules/cacache/get.js 6:11-24
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/chokidar/index.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\chokidar'
 @ ./node_modules/chokidar/index.js 3:9-22
 @ ./node_modules/watchpack/lib/DirectoryWatcher.js
 @ ./node_modules/watchpack/lib/watcherManager.js
 @ ./node_modules/watchpack/lib/watchpack.js
 @ (webpack)/lib/node/NodeWatchFileSystem.js
 @ (webpack)/lib/node/NodeEnvironmentPlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/chokidar/lib/fsevents-handler.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\chokidar\lib'
 @ ./node_modules/chokidar/lib/fsevents-handler.js 3:9-22
 @ ./node_modules/chokidar/index.js
 @ ./node_modules/watchpack/lib/DirectoryWatcher.js
 @ ./node_modules/watchpack/lib/watcherManager.js
 @ ./node_modules/watchpack/lib/watchpack.js
 @ (webpack)/lib/node/NodeWatchFileSystem.js
 @ (webpack)/lib/node/NodeEnvironmentPlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/chokidar/lib/nodefs-handler.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\chokidar\lib'
 @ ./node_modules/chokidar/lib/nodefs-handler.js 3:9-22
 @ ./node_modules/chokidar/index.js
 @ ./node_modules/watchpack/lib/DirectoryWatcher.js
 @ ./node_modules/watchpack/lib/watcherManager.js
 @ ./node_modules/watchpack/lib/watchpack.js
 @ (webpack)/lib/node/NodeWatchFileSystem.js
 @ (webpack)/lib/node/NodeEnvironmentPlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/chownr/chownr.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\chownr'
 @ ./node_modules/chownr/chownr.js 2:11-24
 @ ./node_modules/cacache/lib/util/fix-owner.js
 @ ./node_modules/cacache/lib/util/tmp.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/copy-concurrently/copy.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\copy-concurrently'
 @ ./node_modules/copy-concurrently/copy.js 8:13-26
 @ ./node_modules/move-concurrently/move.js
 @ ./node_modules/cacache/lib/util/move-file.js
 @ ./node_modules/cacache/lib/content/write.js
 @ ./node_modules/cacache/put.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/fs.realpath/index.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\fs.realpath'
 @ ./node_modules/fs.realpath/index.js 8:9-22
 @ ./node_modules/glob/glob.js
 @ ./node_modules/cacache/lib/verify.js
 @ ./node_modules/cacache/verify.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/fs.realpath/old.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\fs.realpath'
 @ ./node_modules/fs.realpath/old.js 24:9-22
 @ ./node_modules/fs.realpath/index.js
 @ ./node_modules/glob/glob.js
 @ ./node_modules/cacache/lib/verify.js
 @ ./node_modules/cacache/verify.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/glob/glob.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\glob'
 @ ./node_modules/glob/glob.js 43:9-22
 @ ./node_modules/cacache/lib/verify.js
 @ ./node_modules/cacache/verify.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/glob/sync.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\glob'
 @ ./node_modules/glob/sync.js 4:9-22
 @ ./node_modules/glob/glob.js
 @ ./node_modules/cacache/lib/verify.js
 @ ./node_modules/cacache/verify.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/graceful-fs/graceful-fs.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\graceful-fs'
 @ ./node_modules/graceful-fs/graceful-fs.js 1:9-22
 @ ./node_modules/enhanced-resolve/lib/NodeJsInputFileSystem.js
 @ ./node_modules/enhanced-resolve/lib/node.js
 @ (webpack)/lib/ResolverFactory.js
 @ (webpack)/lib/Compiler.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/infer-owner/index.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\infer-owner'
 @ ./node_modules/infer-owner/index.js 2:11-24
 @ ./node_modules/cacache/lib/util/fix-owner.js
 @ ./node_modules/cacache/lib/util/tmp.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/is-wsl/index.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\is-wsl'
 @ ./node_modules/is-wsl/index.js 3:11-24
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/loader-runner/lib/LoaderRunner.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\loader-runner\lib'
 @ ./node_modules/loader-runner/lib/LoaderRunner.js 5:9-22
 @ (webpack)/lib/NormalModule.js
 @ (webpack)/lib/AutomaticPrefetchPlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/make-dir/index.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\make-dir'
 @ ./node_modules/make-dir/index.js 2:11-24
 @ ./node_modules/find-cache-dir/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/mkdirp/index.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\mkdirp'
 @ ./node_modules/mkdirp/index.js 2:9-22
 @ (webpack)/lib/debug/ProfilingPlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/move-concurrently/move.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\move-concurrently'
 @ ./node_modules/move-concurrently/move.js 4:13-26
 @ ./node_modules/cacache/lib/util/move-file.js
 @ ./node_modules/cacache/lib/content/write.js
 @ ./node_modules/cacache/put.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/path-exists/index.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\path-exists'
 @ ./node_modules/path-exists/index.js 2:11-24
 @ ./node_modules/locate-path/index.js
 @ ./node_modules/find-up/index.js
 @ ./node_modules/pkg-dir/index.js
 @ ./node_modules/find-cache-dir/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/rimraf/rimraf.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\rimraf'
 @ ./node_modules/rimraf/rimraf.js 6:9-22
 @ ./node_modules/cacache/rm.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/schema-utils/src/validateOptions.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\schema-utils\src'
 @ ./node_modules/schema-utils/src/validateOptions.js 8:11-24
 @ ./node_modules/schema-utils/src/index.js
 @ (webpack)/lib/IgnorePlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/snapdragon/lib/source-maps.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\snapdragon\lib'
 @ ./node_modules/snapdragon/lib/source-maps.js 3:9-22
 @ ./node_modules/snapdragon/lib/compiler.js
 @ ./node_modules/snapdragon/index.js
 @ ./node_modules/micromatch/lib/utils.js
 @ ./node_modules/micromatch/index.js
 @ (webpack)/lib/optimize/SideEffectsFlagPlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in (webpack)-node-externals/utils.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\webpack-node-externals'
 @ (webpack)-node-externals/utils.js 1:9-22
 @ (webpack)-node-externals/index.js
 @ ./config/webpack.config.dev.js

ERROR in (webpack)/lib/debug/ProfilingPlugin.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\webpack\lib\debug'
 @ (webpack)/lib/debug/ProfilingPlugin.js 1:11-24
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in (webpack)/lib/node/NodeMainTemplateAsync.runtime.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\webpack\lib\node'
 @ (webpack)/lib/node/NodeMainTemplateAsync.runtime.js 10:2-15 28:3-16
 @ (webpack)/lib/node/NodeMainTemplatePlugin.js
 @ (webpack)/lib/node/NodeTemplatePlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in (webpack)/lib/node/NodeOutputFileSystem.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\webpack\lib\node'
 @ (webpack)/lib/node/NodeOutputFileSystem.js 7:11-24
 @ (webpack)/lib/node sync ^\.\/.*$
 @ (webpack)/lib/node/NodeMainTemplate.runtime.js
 @ (webpack)/lib/node/NodeMainTemplatePlugin.js
 @ (webpack)/lib/node/NodeTemplatePlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in ./node_modules/y18n/index.js
Module not found: Error: Can't resolve 'fs' in 'K:\linshi\webpackLi\node_modules\y18n'
 @ ./node_modules/y18n/index.js 1:9-22
 @ ./node_modules/cacache/lib/util/y.js
 @ ./node_modules/cacache/locales/en.js
 @ ./node_modules/cacache/index.js
 @ ./node_modules/terser-webpack-plugin/dist/TaskRunner.js
 @ ./node_modules/terser-webpack-plugin/dist/index.js
 @ ./node_modules/terser-webpack-plugin/dist/cjs.js
 @ (webpack)/lib/WebpackOptionsDefaulter.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

ERROR in (webpack)/lib/NormalModule.js
Module not found: Error: Can't resolve 'module' in 'K:\linshi\webpackLi\node_modules\webpack\lib'
 @ (webpack)/lib/NormalModule.js 7:21-38
 @ (webpack)/lib/AutomaticPrefetchPlugin.js
 @ (webpack)/lib/webpack.js

ERROR in (webpack)/lib/node/NodeTargetPlugin.js
Module not found: Error: Can't resolve 'module' in 'K:\linshi\webpackLi\node_modules\webpack\lib\node'
 @ (webpack)/lib/node/NodeTargetPlugin.js 11:1-18
 @ (webpack)/lib/node sync ^\.\/.*$
 @ (webpack)/lib/node/NodeMainTemplate.runtime.js
 @ (webpack)/lib/node/NodeMainTemplatePlugin.js
 @ (webpack)/lib/node/NodeTemplatePlugin.js
 @ (webpack)/lib/webpack.js
 @ ./config/webpack.config.dev.js

webpack 开发模式配置文件：

const path = require('path')
const webpack = require('webpack')
const StartServerPlugin = require('start-server-webpack-plugin')
const nodeExternals = require('webpack-node-externals') // 打包的时候不打包node_modules的代码
module.exports = {
    mode: 'development', // 开发模式，开发模式与生产模式
    entry: [ // 配置入口文件
        'webpack/hot/signal',
        path.resolve(__dirname, '../server.js')
    ],
    output: { // 配置出口文件
        path: path.resolve(__dirname, '../dist'),
        filename: "server.js"
    },
    externals: [nodeExternals()], //为了忽略node_modules文件夹中的所有模块 
    module: { // 模块配置
        rules: [{
            test: /\.js$/,
            exclude: /(node_modules|bower_components)/,
            use: {
                loader: 'babel-loader',
                options: {
                    presets: ['@babel/preset-env'],
                    plugins: ['@babel/transform-runtime']
                }
            }
        }]
    },
    node: {
        console: true,
        global: true,
        process: true,
        Buffer: true,
        __filename: true,
        __dirname: true,
        setImmediate: true
    },
    target: "node", // 
    resolve: { // 配置解析
        extensions: ['', '.js', '.json']
    },
    plugins: [ // 插件的配置
        new webpack.HotModuleReplacementPlugin(),
        new webpack.NoEmitOnErrorsPlugin(),
        new StartServerPlugin({
            name: 'server.js',
            signal: true,
            nodeArgs: ['--inspect']
        }),
    ]
}

package：

{
    "name": "node",
    "version": "1.0.0",
    "description": "",
    "main": "server.js",
    "scripts": {
        "test": "echo \"Error: no test specified\" && exit 1",
        "dev": "webpack --mode=development ./config/webpack.config.dev.js"
    },
    "author": "shmaur",
    "license": "ISC",
    "devDependencies": {
        "koa": "^2.11.0"
    },
    "dependencies": {
        "@babel/core": "^7.7.5",
        "@babel/plugin-transform-runtime": "^7.7.6",
        "@babel/preset-env": "^7.7.6",
        "@babel/runtime": "^7.7.6",
        "babel-cli": "^6.26.0",
        "babel-loader": "^8.0.6",
        "babel-register": "^6.26.0",
        "start-server-webpack-plugin": "^2.2.5",
        "uglifyjs-webpack-plugin": "^2.2.0",
        "webpack": "^4.41.2",
        "webpack-cli": "^3.3.10",
        "webpack-dev-server": "^3.9.0",
        "webpack-node-externals": "^1.7.2"
    }
}

入口文件：

require('babel-register');
const http = require('http');
const app = require('./app');
const currentApp = app.callback();
const server = http.createServer(currentApp)

server.listen(3006)

// 热加载
if (module.hot) {
    // 监听./app.js
    module.hot.accept('./app.js', () => {
        // 如果有改动，就使用新的app来处理请求
        server.removeListener('request', currentApp);
        server.on('request', currentApp);
    });
}

app.js:

const Koa = require('koa')
const app = new Koa()

app.use(ctx => {
    ctx.body = 'Hello Worl';
})

module.exports = app

javascript node.js

阅读 7.4k

1 个回答

得票最新

zyghhhh

527

发布于
2020-04-07

新手上路，请多包涵

解决了吗同问

撰写回答

你尚未登录，登录后可以

和开发者交流问题的细节
关注并接收问题和回答的更新提醒
参与内容的编辑和改进，让解决方法与时俱进

推荐问题

相似问题

找不到问题？创建新问题

webpack打包node服务，打包报错缺失模块，但是在node_modules里面又存在

你尚未登录，登录后可以

js 如何将Key属性相同的放在同一个数组？

Next.js做纯前端是否可行？

如何实现一个深拷贝函数？

怎么用Vue3和Element-Plus及手动写组件模仿一个网站的全站内容，要模仿的很像？

怎么获取动态弹出对话框的模拟单击？

git提交记录问题？

为什么在 JavaScript 中直接调用和用逻辑与调用方法结果不同？