reactjswebpackfbjs

Webpack error: Can't resolve 'fbjs/lib/EventListener'


I'm trying to add react to my existing web app. I successfully installed all required npm modules but after running npm run wbp command I got a lot of errors like:

ERROR in ./node_modules/react-dom/cjs/react-dom.production.min.js
Module not found: Error: Can't resolve 'fbjs/lib/EventListener'

ERROR in ./node_modules/react/cjs/react.production.min.js
Module not found: Error: Can't resolve 'object-assign'

Webpack version:

Version: webpack 4.1.1

My webpack.config.js:

const path = require('path');

module.exports = {
    entry: path.join(__dirname, '/wwwroot/js/stats.jsx'),
    output: {
        path: path.join(__dirname, 'wwwroot/js/'),
        filename: 'admin.js'
    },
    resolve: {
        extensions: ['.jsx']
    },
    module: {
        rules: [
            {
                test: /\.jsx?$/,
                loader: 'babel-loader',
                query: {
                    cacheDirectory: true,
                    presets: ['@babel/preset-react', '@babel/preset-env']
                }
            }
        ]
    }
};

My package.json:

    {
  "name": "WebSite",
  "version": "1.0.0",
  "description": "",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "wbp": "webpack --display-error-details --mode production"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.0.0-beta.40",
    "@babel/preset-env": "^7.0.0-beta.40",
    "@babel/preset-react": "^7.0.0-beta.40",
    "babel-loader": "^8.0.0-beta.0",
    "cjs": "0.0.11",
    "fbjs": "^0.8.16",
    "react": "^16.2.0",
    "react-dom": "^16.2.0",
    "webpack": "^4.1.1",
    "webpack-cli": "^2.0.10"
  }
}

I tried to solve this problem with manual mapping path to fbjs but without success. What am I doing wrong?

UPD: webpack --display-error-details --mode development generated admin.js for me but also showed me error. Browser console shows me react.development.js:17 Uncaught Error: Cannot find module "object-assign" error in this case


Solution

  • Finally I got it working:

    My package.json:

    {
      "name": "WebSite",
      "version": "1.0.0",
      "description": "",
      "scripts": {
        "test": "echo \"Error: no test specified\" && exit 1",
        "wbp": "webpack --display-error-details --mode development"
      },
      "keywords": [],
      "author": "",
      "license": "ISC",
      "dependencies": {
        "react": "^15.4.2",
        "react-dom": "^15.4.2"
      },
      "devDependencies": {
        "babel-cli": "^6.26.0",
        "babel-core": "^6.26.0",
        "babel-loader": "^7.1.4",
        "babel-preset-es2015": "^6.24.1",
        "babel-preset-react": "^6.24.1",
        "webpack": "^4.1.1",
        "webpack-cli": "^2.0.11",
        "webpack-config": "^7.0.0"
      }
    }
    

    My webpack.config.js:

    const path = require('path');
    
    
    module.exports = {
        entry: path.join(__dirname, 'wwwroot/js/Admin/stats.jsx'),
        output: {
            path: path.join(__dirname, 'wwwroot/js/Admin'),
            filename: 'admin.js'
        },
        resolve: {
            extensions: ['.jsx', '.js']
        },
        module: {
            rules: [{
                test: /\.jsx?$/,
                loader: 'babel-loader',
                query:
                    {
                        presets:['react']
                    }
            }]
        },
    };