Building a react app with socket.io and webpack doesn't work

I was reading all this week about this issue, but any of the solutions that are in the web doesn't work with the project that I am developing. I am working in a webapp using react and its related technologies. To make the compile process I am using the new version of webpack (v2.3.2). I have my server webpack configuration separate from my client webpack configuration. All were working good until I add socket.io in order to make some real-time components. Applying all the solutions that are in the web I am still get the following warning when I run my bundle script:

WARNING in ./~/express/lib/view.js
80:29-41 Critical dependency: the request of a dependency is an expression

WARNING in ./~/socket.io/lib/index.js
109:11-32 Critical dependency: the request of a dependency is an expression

WARNING in ./~/engine.io/lib/server.js
115:15-37 Critical dependency: the request of a dependency is an expression

And when I try to start my project, I get the following error:

return /*require.resolve*/(!(function webpackMissingModule() { var e = new Error("Cannot find module \".\""); e.code = 'MODULE_NOT_FOUND'; throw e; }()));
                                                                                                                                           ^

Error: Cannot find module "."
    at webpackMissingModule (/Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:357017:76)
at Server.serveClient   (/Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:357020:25)
    at new Server (/Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:356959:8)
    at Server (/Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:356951:41)
    at Object.<anonymous> (/Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:72569:33)
    at __webpack_require__ (/Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:20:30)
    at Object.<anonymous> (/Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:344445:18)
    at __webpack_require__ (/Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:20:30)
    at /Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:66:18
    at Object.<anonymous> (/Users/macpro/Documents/lisa_project/pos_lisa/built/server/index.js:69:10)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)

Here is my webpack.client.config.js

const ExtractTextPlugin = require('extract-text-webpack-plugin');
const path = require('path');
const webpack = require('webpack');

module.exports = {
  entry: ['babel-polyfill', path.join(__dirname, '../source/client.jsx')],
  output: {
    filename: 'app.js',
    path: path.join(__dirname, '../built/statics'),
  },
  module: {
    rules: [
      {
        test: /\.json$/,
        use: 'json-loader',
      },
      {
        test: /\.jsx?$/,
        exclude: /(node_modules)/,
        loader: 'babel-loader',
        query: {
          presets: ['es2016', 'es2017', 'react'],
          plugins: ['transform-es2015-modules-commonjs'],
        },
      },
      {
        test: /\.css$/,
        exclude: /(node_modules)/,
        loader: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: 'css-loader?modules',
        }),
      },
      {
        test: /\.inline.svg$/,
        loader: 'babel-loader!react-svg-loader?' + JSON.stringify({
          svgo: {
            // svgo options
            plugins: [{removeTitle: false}],
            floatPrecision: 2
          }
        }),
      },
      {
        test: /\.jpe?g$|\.gif$|\.png$|^(?!.*\.inline\.svg$).*\.svg$/,
        loader: 'url-loader?limit=400000'
      },
    ],
    noParse: [ path.join(__dirname, '../node_modules/ws') ],
  },
  externals: [ path.join(__dirname, '../node_modules/ws'), path.join(__dirname, '../node_modules/socket.io') ],
  target: 'web',
  resolve: {
    extensions: ['.js', '.jsx', '.css', '.json'],
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env.BROWSER': true,
    }),
    new ExtractTextPlugin({
      filename: '../statics/styles.css',
      ignoreOrder: true,
    }),
  ],
  watch: true,
};

Here is my webpack.server.config.js

const ExtractTextPlugin = require('extract-text-webpack-plugin');
const path = require('path');
const webpack = require('webpack');

module.exports = {
  entry: ['babel-polyfill', path.join(__dirname, '../source/server.jsx')],
  output: {
    filename: 'index.js',
    path: path.join(__dirname, '../built/server'),
  },
  module: {
    rules: [
      {
        test: /\.json$/,
        use: 'json-loader',
      },
      {
        test: /\.jsx?$/,
        exclude: /(node_modules)/,
        loader: 'babel-loader',
        query: {
          presets: ['latest-minimal', 'react'],
        },
      },
      {
        test: /\.css$/,
        exclude: /(node_modules)/,
        loader: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: 'css-loader?modules',
        }),
      },
      {
        test: /\.inline.svg$/,
        loaders: [ 'babel-loader',
          {
            loader: 'react-svg-loader',
            query: {
              svgo: {
                plugins: [{removeTitle: false}],
                floatPrecision: 2
              }
            }
          }
        ]
      },
      {
        test: /\.jpe?g$|\.gif$|\.png$|^(?!.*\.inline\.svg$).*\.svg$/,
        loader: 'url-loader?limit=400000'
      },
    ],
    noParse: [ path.join(__dirname, '../node_modules/ws') ],
  },
  externals: [ path.join(__dirname, '../node_modules/ws'), path.join(__dirname, '../node_modules/socket.io') ],
  target: 'node',
  resolve: {
    extensions: ['.js', '.jsx', '.css', '.json'],
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env.BROWSER': false,
    }),
    new ExtractTextPlugin({
      filename: '../statics/styles.css',
      ignoreOrder: true,
    }),
  ],
  watch: true,
};

And my server.jsx (the important parts)

import http from 'http';
import express from 'express';
import socketio from 'socket.io';

const lisaApp = express();
const server = http.createServer(lisaApp);
const io = socketio(server);

In advance, thanks for your help and answers

via maoooricio