Webpack Express无法解析模块'fs'，请求依赖是表达式 [英] Webpack Express Cannot Resolve Module 'fs', Request Dependency is Expression

问题描述

当我在项目中包含Express时，当我尝试使用webpack构建时，我总是会遇到这些错误。

When I include Express in my project I always get these errors when I try to build with webpack.

webpack.config.dev.js

webpack.config.dev.js

var path = require("path")

module.exports = {
  entry: {
    "server": "./server/server.ts"
  },
  output: {
    path: path.resolve(__dirname, "dist"),
    filename: "bundle.js",
    publicPath: "/public/"
  },
  module: {
    loaders: [
      {
        test: /\.ts(x?)$/,
        exclude: /node_modules/,
        loader: "ts-loader"
      }, {
        test: /\.js(x?)$/,
        exclude: /node_modules/,
        loader: "babel-loader"
      }, {
        test: /\.json$/,
        loader: "json-loader"
      }, {
        test: /\.scss$/,
        exclude: /node_modules/,
        loaders: ["style-loader", "css-loader", "postcss-loader", "sass-loader"]
      }, {
        test: /\.css$/,
        loader: ["style-loader", "css-loader", "postcss-loader"]
      }, {
        test: /\.(jpe?g|gif|png|svg)$/i,
        loader: 'url-loader?limit=10000'
      }
    ]
  }
}

我试过：

1. 安装'fs'但不起作用



2. 在某处读取更改节点fs属性。它删除了错误警告，但我不认为这是一个很好的永久解决方案。

1. Installing 'fs' but it doesn't work

2. Read somewhere to change the node fs property. It removes the error warnings but I don't think this is a good permanent solution.

module.exports = {
  node: {
    fs: "empty"
  }
}

时间：2496ms
资产大小块块名称
bundle.js 761 kB 0 [emit] server
bundle.js.map 956 kB 0 [emit] server
+ 119隐藏模块

Time: 2496ms Asset Size Chunks Chunk Names bundle.js 761 kB 0 [emitted] server bundle.js.map 956 kB 0 [emitted] server + 119 hidden modules

警告在./~/express/lib/view.js
关键依赖关系：
78：29-56 a的请求依赖是一个表达式
@ ./~/express/lib/view.js 78：29-56
ERROR in ./~/express/lib/view.js

WARNING in ./~/express/lib/view.js Critical dependencies: 78:29-56 the request of a dependency is an expression @ ./~/express/lib/view.js 78:29-56 ERROR in ./~/express/lib/view.js

找不到模块：错误：无法解析/ Users / clementoh / Desktop / boilerplate2 / node_modules / express / lib
@ ./~/express/lib/view.js中的模块'fs' 18：9-22
ERROR in ./~/send/index.js

Module not found: Error: Cannot resolve module 'fs' in /Users/clementoh/Desktop/boilerplate2/node_modules/express/lib @ ./~/express/lib/view.js 18:9-22 ERROR in ./~/send/index.js

找不到模块：错误：无法解析/ Users中的模块'fs' / clementoh /桌面/ boilerplate2 / node_module s /发送
@ ./~/send/index.js 24：9-22
ERROR in ./~/etag/index.js

Module not found: Error: Cannot resolve module 'fs' in /Users/clementoh/Desktop/boilerplate2/node_modules/send @ ./~/send/index.js 24:9-22 ERROR in ./~/etag/index.js

找不到模块：错误：无法解析/ Users / clementoh / Desktop / boilerplate2 / node_modules / etag
@ ./~/etag/index.js 22：12-25
中的模块'fs'错误在./~/destroy/index.js

Module not found: Error: Cannot resolve module 'fs' in /Users/clementoh/Desktop/boilerplate2/node_modules/etag @ ./~/etag/index.js 22:12-25 ERROR in ./~/destroy/index.js

找不到模块：错误：无法解析/ Users / clementoh / Desktop / boilerplate2 / node_modules /中的模块'fs'销毁
@ ./~/destroy/index.js 14：17-30
ERROR in ./~/mime/mime.js

Module not found: Error: Cannot resolve module 'fs' in /Users/clementoh/Desktop/boilerplate2/node_modules/destroy @ ./~/destroy/index.js 14:17-30 ERROR in ./~/mime/mime.js

找不到模块：错误：无法解析/ Users / clementoh / Desktop / boilerplate2 / node_modules / mime中的模块'fs'
@ ./~/mime/mime.js 2：9-22

Module not found: Error: Cannot resolve module 'fs' in /Users/clementoh/Desktop/boilerplate2/node_modules/mime @ ./~/mime/mime.js 2:9-22

推荐答案

只是发布一个答案，因为不是每个人都会读到关于SO的评论。 @ Aurora0001钉了它。 Webpack的配置需要设置：

Just posting an answer, since not everyone reads comments on SO. @Aurora0001 nailed it. Webpack's config needs to have this set:

"target": "node"

这篇关于Webpack Express无法解析模块'fs'，请求依赖是表达式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！