seems to be working like this

tools/app/angular-tour-of-heroes/package.json

@@ -4,12 +4,11 @@
   "scripts": {
     "ng": "ng",
     "start": "ng serve",
-    "build": "ng build",
+    "build": "ng build && cp ./src/electron-app.js ./dist",
+    "electron-start": "./node_modules/.bin/electron dist/electron-app.js",
     "test": "ng test",
     "lint": "ng lint",
-    "e2e": "ng e2e",
-    "build-electron": "ng build --base-href . && cp src/electron/* dist/",
-    "electron": "npm run build-electron && ./node_modules/.bin/electron dist/"
+    "e2e": "ng e2e"
   },
   "private": true,
   "dependencies": {

tools/app/angular-tour-of-heroes/src/electron-app.js

@@ -0,0 +1,30 @@
+const { create } = require('domain')
+const { app, BrowserWindow } = require('electron')
+
+let mainWindow
+function createWindow() {
+    mainWindow = new BrowserWindow({
+        width: 800,
+        height: 600,
+        autoHideMenuBar: false
+    })
+    mainWindow.loadURL('file://' + __dirname + '/angular-tour-of-heroes/index.html')
+    mainWindow.webContents.openDevTools()
+    mainWindow.on('closed', () => {
+        mainWindow = null
+    })
+}
+
+app.on('ready', createWindow)
+
+app.on('window-all-closed', () => {
+    if (process.platform !== 'darwin') {
+        app.quit()
+    }
+})
+
+app.on('activate', () => {
+    if (mainWindow === null) {
+        createWindow()
+    }
+})

tools/app/angular-tour-of-heroes/src/electron/mains.js

@@ -1,34 +0,0 @@
-const electron = require('electron')
-const app = electron.app
-const BrowserWindow = electron.BrowserWindow
-const path = require('path')
-const url = requite('url')
-
-let mainWindow
-
-function createWindow() {
-    mainWindow = new BrowserWindow({width: 800, height: 600})
-    mainWindow.loadURL(url.format({
-        pathname: path.join(__dirname, 'index.html'),
-        protocol: 'file',
-        slashes: true
-    }))
-
-    mainWindow.webContents.openDevTools()
-
-    mainWindow.on('closed', function() {
-        mainWindow = null
-    })
-}
-
-app.on('ready', createWindow)
-app.on('window-all-closed', function() {
-    if (process.platform !== 'darwin') {
-        app.quit()
-    }
-})
-app.on('activate', function() {
-    if (mainWindow === null) {
-        createWindow()
-    }
-})

tools/app/angular-tour-of-heroes/src/electron/package.json

@@ -1,5 +0,0 @@
-{
-    "name": "angular-electron",
-    "version": "0.1.0",
-    "main": "main.js"
-}

tools/app/angular-tour-of-heroes/src/polyfills.ts

@@ -55,7 +55,7 @@
 /***************************************************************************************************
  * Zone JS is required by default for Angular itself.
  */
-import 'zone.js/dist/zone-mix';  // Included with Angular CLI.
+import 'zone.js/dist/zone';  // Included with Angular CLI.
 
 
 /***************************************************************************************************