Ditched using shell plugin in favour of Webpack 4 API. Disabled sloc as it crashes in node v10.

Author: photonstorm

scripts/copy-to-examples.js

@@ -1,5 +1,5 @@
 let fs = require('fs-extra');
-let sloc = require('node-sloc');
+// let sloc = require('node-sloc');
 
 let source = './build/phaser.js';
 let sourceMap = './build/phaser.js.map';
@@ -56,9 +56,9 @@ if (fs.existsSync(dest))
             extensions: [ '.js' ]
         };
 
-        sloc(options).then((res) => {
-            console.log('Source files: ' + res.sloc.files + '\nLines of code: ' + res.sloc.sloc);
-        });
+        // sloc(options).then((res) => {
+        //     console.log('Source files: ' + res.sloc.files + '\nLines of code: ' + res.sloc.sloc);
+        // });
 
     });
 }

webpack.config.js

@@ -1,7 +1,7 @@
 'use strict';
 
 const webpack = require('webpack');
-const WebpackShellPlugin = require('webpack-shell-plugin');
+const exec = require('child_process').exec;
 
 module.exports = {
     mode: 'development',
@@ -31,8 +31,16 @@ module.exports = {
             "typeof CANVAS_RENDERER": JSON.stringify(true),
             "typeof WEBGL_RENDERER": JSON.stringify(true)
         }),
-
-        new WebpackShellPlugin({onBuildExit: 'node scripts/copy-to-examples.js'})
+        {
+            apply: (compiler) => {
+                compiler.hooks.afterEmit.tap('AfterEmitPlugin', (compilation) => {
+                    exec('node scripts/copy-to-examples.js', (err, stdout, stderr) => {
+                        if (stdout) process.stdout.write(stdout);
+                        if (stderr) process.stderr.write(stderr);
+                    });
+                });
+            }
+        }
     ],
 
     devtool: 'source-map'