模块在Heroku上部署时未找到错误

Question

我正在尝试将我的应用程序部署到Github到Heroku，但是出错了：

未找到./src/Index.tsx模块中的错误:错误:无法解析“./app/src”@ ./src/Index.tsx 9:23-50中的./ConfigureStore‘

当我部署到Heroku上时，似乎出现了打字稿问题。

虽然，工作完美在我的当地和webpack生成捆绑和应用程序运行良好。下面是我的webpack.config：

const path = require('path');
const webpack = require('webpack');
const merge = require('webpack-merge');
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
const rootModulePath = "./src/";

module.exports = {
    stats: { modules: false },
    resolve: {
        extensions: ['.js', '.jsx', '.ts', '.tsx', '.css']
    },
    entry: {
        'DIG': rootModulePath + "Index.tsx"
    },
    externals: {
        jQuery: 'jQuery'
      },
      node: {
        fs: 'empty'
      },
    plugins: [
        new webpack.ProvidePlugin({
            '$': 'jquery',
            'jQuery': 'jquery'
          }),
        new webpack.IgnorePlugin(/\.\/locale$/),
        new CheckerPlugin()        
    ],
    devtool: 'source-map',
    output: {
        path: __dirname,
        filename: './public/dig.js'
    },
    module: {
        rules: [
            { test: /\.tsx?$/, include: /src/, use: ['awesome-typescript-loader?silent=true'] },
            //{ test: /\.ts$/, include: /src/, use: 'awesome-typescript-loader?silent=true' },
            { test: /\.html$/, use: 'html-loader?minimize=false' },
            {
                test: /\.less$/,
                use: [{
                    loader: "style-loader" // creates style nodes from JS strings
                }, {
                    loader: "css-loader" // translates CSS into CommonJS
                }, {
                    loader: "less-loader" // compiles Less to CSS
                }]
            },
            { test: /\.css$/, use: ['style-loader','css-loader'] },
            { test: /\.(png|jpg|jpeg|gif|svg)$/, use: 'url-loader?limit=25000' }
            // { test: /\.js/, loader: 'imports-loader?define=>false'}
        ]
    }    
};

package.json

{
  "name": "digeratia",
  "version": "1.0.0",
  "description": "",
  "main": "webpack.config.js",
  "scripts": {
    "build": "webpack --mode production",
    "start": "npm run build && node server.js"
  },
  "author": "Vivek Singh",
  "dependencies": {
    "@types/history": "4.6.2",
    "@types/numeral": "0.0.22",
    "@types/react": "16.1.0",
    "@types/react-bootstrap": "^0.32.6",
    "@types/react-dom": "16.0.4",
    "@types/react-hot-loader": "3.0.6",
    "@types/react-redux": "5.0.15",
    "@types/react-router": "4.0.23",
    "@types/react-router-dom": "4.2.6",
    "@types/react-router-redux": "5.0.13",
    "@types/webpack": "4.1.3",
    "@types/webpack-env": "1.13.5",
    "awesome-typescript-loader": "4.0.1",
    "axios": "^0.18.0",
    "bootstrap": "^4.0.0-alpha.6",
    "chai": "^4.1.2",
    "create-react-class": "^15.6.2",
    "datatables.net": "^1.10.16",
    "datatables.net-dt": "^1.10.16",
    "domain-task": "^3.0.3",
    "event-source-polyfill": "0.0.12",
    "express": "^4.16.2",
    "extract-text-webpack-plugin": "3.0.2",
    "file-loader": "1.1.11",
    "history": "4.7.2",
    "html-to-react": "1.3.3",
    "it": "^1.1.1",
    "json-loader": "0.5.7",
    "less": "^3.0.1",
    "less-loader": "^4.0.5",
    "lodash": "^4.17.4",
    "node-noop": "1.0.0",
    "numeral": "^2.0.6",
    "react": "^16.2.0",
    "react-bootstrap": "^0.32.1",
    "react-dom": "^16.2.0",
    "react-element-to-jsx-string": "^13.0.0",
    "react-hot-loader": "4.0.1",
    "react-image": "^1.0.1",
    "react-intl": "^2.4.0",
    "react-moment": "^0.7.0",
    "react-popper": "^0.9.2",
    "react-redux": "5.0.7",
    "react-router-dom": "4.2.2",
    "react-router-redux": "5.0.0-alpha.6",
    "redux": "3.7.2",
    "redux-thunk": "2.2.0",
    "shelljs": "^0.8.1",
    "style-loader": "^0.20.3",
    "to-string-loader": "^1.1.5",
    "typescript": "2.8.1",
    "url-loader": "1.0.1",
    "webpack": "4.4.1",
    "webpack-hot-middleware": "2.21.2",
    "webpack-merge": "4.1.2",
    "xit": "^0.2.0",
    "abort-controller": "^1.0.0",
    "babel-plugin-syntax-optional-chaining": "^7.0.0-alpha.13",
    "babel-runtime": "^6.26.0",
    "core-js": "^2.5.1",
    "css-loader": "^0.28.4",
    "css-to-string-loader": "^0.1.3",
    "react-render-html": "^0.6.0",
    "toastr": "^2.1.2",
    "webpack-cli": "^2.0.12"
  },
  "devDependencies": {
    "abort-controller": "^1.0.0",
    "babel-plugin-syntax-optional-chaining": "^7.0.0-alpha.13",
    "babel-runtime": "^6.26.0",
    "core-js": "^2.5.1",
    "css-loader": "^0.28.4",
    "css-to-string-loader": "^0.1.3",
    "react-render-html": "^0.6.0",
    "toastr": "^2.1.2",
    "webpack-cli": "^2.0.12"
  }
}

github代码url是这里

请帮助，因为我在这个问题上拖延了很长时间。

Answer 1

所以问题不在于你发布的是什么。这个问题得到了解决，因为您假设Index.ts或Index.tsx等同于index.ts或index.tsx。如果您查看下面的线程

webpack: MacOS很好，linux上加载程序错误。

它解释了在Mac上你不会面对这个问题。我也假设Windows也是一样的情况。但是有了Linux，你就会面临这个问题。这就是这里正在发生的事情。如果你去赫鲁库盒子

$ heroku ps:exec
Establishing credentials... done
Connecting to web.1 on ⬢ sleepy-sea-65699...
~ $ webpack -p --verbose
Hash: 8c20236f8268ce043077
Version: webpack 3.10.0
Time: 24904ms
            Asset     Size  Chunks                    Chunk Names
    ./docs/dig.js   608 kB       0  [emitted]  [big]  DIG
./docs/dig.js.map  4.25 MB       0  [emitted]         DIG
Entrypoint DIG [big] = ./docs/dig.js ./docs/dig.js.map
chunk    {0} ./docs/dig.js, ./docs/dig.js.map (DIG) 1.38 MB [entry] [rendered]
...
...
ERROR in ./src/configureStore.ts
Module not found: Error: Can't resolve './Stores' in '/app/src'
resolve './Stores' in '/app/src'
  using description file: /app/package.json (relative path: ./src)
    Field 'browser' doesn't contain a valid alias configuration
  after using description file: /app/package.json (relative path: ./src)
    using description file: /app/package.json (relative path: ./src/Stores)
      no extension
        Field 'browser' doesn't contain a valid alias configuration
        /app/src/Stores is not a file
      .js
        Field 'browser' doesn't contain a valid alias configuration
        /app/src/Stores.js doesn't exist
      .jsx
        Field 'browser' doesn't contain a valid alias configuration
        /app/src/Stores.jsx doesn't exist
      .ts
        Field 'browser' doesn't contain a valid alias configuration
        /app/src/Stores.ts doesn't exist
      .tsx
        Field 'browser' doesn't contain a valid alias configuration
        /app/src/Stores.tsx doesn't exist
      .css
        Field 'browser' doesn't contain a valid alias configuration
        /app/src/Stores.css doesn't exist
      as directory
        existing directory
          using path: /app/src/Stores/index
            using description file: /app/package.json (relative path: ./src/Stores/index)
              no extension
                Field 'browser' doesn't contain a valid alias configuration
                /app/src/Stores/index doesn't exist
              .js
                Field 'browser' doesn't contain a valid alias configuration
                /app/src/Stores/index.js doesn't exist
              .jsx
                Field 'browser' doesn't contain a valid alias configuration
                /app/src/Stores/index.jsx doesn't exist
              .ts
                Field 'browser' doesn't contain a valid alias configuration
                /app/src/Stores/index.ts doesn't exist
              .tsx
                Field 'browser' doesn't contain a valid alias configuration
                /app/src/Stores/index.tsx doesn't exist
              .css
                Field 'browser' doesn't contain a valid alias configuration
                /app/src/Stores/index.css doesn't exist

如您所见，文件出现错误的情况是index而不是Index。

此外，如果您检查您的回购配置

$ cat .git/config
[core]
    repositoryformatversion = 0
    filemode = true
    bare = false
    logallrefupdates = true
    ignorecase = true
    precomposeunicode = true

您可以看到ignorecase设置为true，这不是很好，因为这样git就不会查看文件的重命名和情况更改，并推送重命名的文件。

因此，从本质上讲，错误在于您的Index.ts应该是index.ts，以使您的构建兼容跨操作系统。

大小写敏感插件

您应该为您的开发启用区分大小写的插件，以避免此类问题。

$ npm install --save-dev case-sensitive-paths-webpack-plugin

> fsevents@1.1.3 install /Users/tarun.lalwani/Desktop/tarunlalwani.com/tarunlalwani/workshop/ub16/so/DigeratiGlobalReact/node_modules/fsevents
> node install

[fsevents] Success: 
+ case-sensitive-paths-webpack-plugin@2.1.2
added 117 packages from 85 contributors and removed 3 packages in 9.661s

更新您的webpack.config.js如下所示

const path = require('path');
const webpack = require('webpack');
const merge = require('webpack-merge');
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
const rootModulePath = "./src/";
const rootBundlePath = "./src/bundle/";
const isDevBuild = true;
var CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');


module.exports = {
    stats: { modules: false },
    resolve: {
        extensions: ['.js', '.jsx', '.ts', '.tsx', '.css']
    },
    entry: {
        'DIG': rootModulePath + "Index.tsx"
    },
    externals: {
        jQuery: 'jQuery'
      },
      node: {
        fs: 'empty'
      },
    plugins: [
        new CaseSensitivePathsPlugin(),
        new webpack.ProvidePlugin({
            '$': 'jquery',
            'jQuery': 'jquery'
          }),
 ....

现在，当您构建时，您将直接在Windows/Mac中看到这些问题

sh-3.2$ npm run build

> digeratiaglobal@1.0.0 build /Users/tarun.lalwani/Desktop/tarunlalwani.com/tarunlalwani/workshop/ub16/so/DigeratiGlobalReact
> webpack -p

Hash: 3762a6deb22d9fabd37b
Version: webpack 3.10.0
Time: 12279ms
            Asset     Size  Chunks                    Chunk Names
    ./docs/dig.js   511 kB       0  [emitted]  [big]  DIG
./docs/dig.js.map  3.56 MB       0  [emitted]         DIG

ERROR in ./src/configureStore.ts
Module not found: Error: [CaseSensitivePathsPlugin] `/Users/tarun.lalwani/Desktop/tarunlalwani.com/tarunlalwani/workshop/ub16/so/DigeratiGlobalReact/src/Stores/index.ts` does not match the corresponding path on disk `Index.ts`.
 @ ./src/configureStore.ts 6:15-34
 @ ./src/Index.tsx
npm ERR! code ELIFECYCLE
npm ERR! errno 2

Answer 2

我让它发挥作用..。看来目录导入在Heroku上不起作用。

因此，当我用'Index.ts‘或'Index.tsx’对我的导入进行限定时，包被创建得非常完美，并且应用程序开始工作如下：

来自

import * as Store from './ConfigureStore'

到

import * as Store from './ConfigureStore/Index';

可能会对将来的人有帮助。

Answer 3

您的文件名为configureStore，当您试图导入ConfigureStore时，应该使用lowerCase "c“。

它在您的机器上工作，但Heroku是区分大小写的。