title: Angular 2 npm install error packages
body: <p>I'm using Angular 2.Node version is <code>v6.9.1</code>. 
  Npm version is: <code>4.0.3</code>.When I run <code>npm start</code> the following errors are shown:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>ng2-fundamentals-demo@1.0.0 start /var/www/html/ng2-fundamentals
  &gt; tsc &amp;&amp; concurrently "npm run tsc:w" "npm run server" 
  
  app/app.module.ts(3,30): error TS2307: Cannot find module '@angular/router'.
  app/events-list-resolver.service.ts(2,25): error TS2307: Cannot find module '@angular/router'.
  app/events/create-event.component.ts(2,24): error TS2307: Cannot find module '@angular/router'.
  app/events/event-details/event-details.component.ts(3,32): error TS2307: Cannot find module '@angular/router'.
  app/events/event-details/event-route-activator.service.ts(1,61): error TS2307: Cannot find module '@angular/router'.
  app/events/events-list.component.ts(4,32): error TS2307: Cannot find module '@angular/router'.
  app/events/shared/event.service.ts(15,23): error TS2339: Property 'find' does not exist on type '({ id: number; name: string; date: string; time: string; price: number; imageUrl: string; session...'.
  app/routes.ts(1,24): error TS2307: Cannot find module '@angular/router'.
  node_modules/@angular/common/src/directives/ng_class.d.ts(48,34): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/common/src/pipes/async_pipe.d.ts(44,38): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/aot/compiler.d.ts(32,38): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/aot/compiler.d.ts(44,32): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/compiler/src/aot/compiler_host.d.ts(20,33): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/compile_metadata.d.ts(342,20): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/compiler/src/compile_metadata.d.ts(344,28): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/compiler/src/compile_metadata.d.ts(346,15): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/compiler/src/compile_metadata.d.ts(348,23): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/compiler/src/compile_metadata.d.ts(350,17): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/compiler/src/compile_metadata.d.ts(352,25): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/compiler/src/directive_normalizer.d.ts(38,72): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/directive_normalizer.d.ts(40,74): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/i18n/extractor.d.ts(14,33): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/i18n/extractor.d.ts(22,35): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/jit/compiler.d.ts(44,49): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/jit/compiler.d.ts(46,65): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/metadata_resolver.d.ts(58,104): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/output/output_ast.d.ts(433,63): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/compiler/src/resource_loader.d.ts(13,23): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/util.d.ts(33,18): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/util.d.ts(34,46): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_init.d.ts(16,18): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_ref.d.ts(116,76): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_ref.d.ts(132,110): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_ref.d.ts(158,67): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_ref.d.ts(160,101): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/change_detection/differs/default_keyvalue_differ.d.ts(24,15): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/core/src/change_detection/differs/default_keyvalue_differ.d.ts(28,16): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/core/src/di/reflective_provider.d.ts(87,123): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/core/src/di/reflective_provider.d.ts(87,165): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/core/src/facade/lang.d.ts(12,17): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/core/src/facade/lang.d.ts(13,17): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/core/src/linker/compiler.d.ts(53,49): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/linker/compiler.d.ts(61,65): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/linker/ng_module_factory_loader.d.ts(14,34): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/linker/system_js_ng_module_factory_loader.d.ts(28,25): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/util/lang.d.ts(12,53): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/platform-browser-dynamic/src/resource_loader/resource_loader_impl.d.ts(10,23): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/platform-browser/src/browser/browser_adapter.d.ts(79,33): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/platform-browser/src/dom/dom_adapter.d.ts(97,42): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/platform-browser/src/dom/dom_renderer.d.ts(22,37): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/platform-browser/src/dom/shared_styles_host.d.ts(11,30): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/platform-browser/src/dom/shared_styles_host.d.ts(22,30): error TS2304: Cannot find name 'Set'.
  node_modules/@types/localforage/index.d.ts(25,25): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(60,43): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(62,46): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(65,30): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(68,40): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(71,30): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(74,14): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(77,15): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(80,28): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(83,13): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/localforage/index.d.ts(86,83): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/Observable.d.ts(68,60): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/Observable.d.ts(68,70): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/observable/PromiseObservable.d.ts(40,31): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/observable/PromiseObservable.d.ts(41,26): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/operator/toPromise.d.ts(2,60): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/operator/toPromise.d.ts(3,79): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/operator/toPromise.d.ts(3,89): error TS2304: Cannot find name 'Promise'.</code></pre>
  </div>
  </div>
  </p>
  
  <p>I have tried many things like that:
  npm uninstall -g angular-cli</p>
  
  <p>npm cache clean
  rm -rf node_modules
  npm install --save</p>
  
  <p>and other issues but still no result.</p>
  
  <p>My package.json is:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>{
    "name": "ng2-fundamentals-demo",
    "version": "1.0.0",
    "scripts": {
      "start": "tsc &amp;&amp; concurrently \"npm run tsc:w\" \"npm run server\" ",
      "server": "node node_modules/ng2f-server/server.js",
      "tsc": "tsc",
      "tsc:w": "tsc -w"
    },
    "keywords": [],
    "author": "",
    "licenses": [
      {
        "type": "MIT",
        "url": "https://github.com/angular/angular.io/blob/master/LICENSE"
      }
    ],
    "dependencies": {
      "@angular/common": "2.4.8",
      "@angular/compiler": "2.4.8",
      "@angular/compiler-cli": "2.4.8",
      "@angular/core": "2.4.8",
      "@angular/forms": "2.4.8",
      "@angular/http": "2.4.8",
      "@angular/platform-browser": "2.4.8",
      "@angular/platform-browser-dynamic": "2.4.8",
      "@angular/platform-server": "2.4.8",
      "@ionic/storage": "2.0.0",
      "ionic-angular": "2.2.0",
      "ionic-native": "2.4.1",
      "ionicons": "3.0.0",
      "rxjs": "5.0.1",
      "sw-toolbox": "3.4.0",
      "zone.js": "0.7.2"
    },
    "devDependencies": {
      "@ionic/app-scripts": "1.1.4",
      "typescript": "2.0.9"
    },
    "repository": {}
  }</code></pre>
  </div>
  </div>
  </p>
  
  <p>How to fix these errors in packages and Angular 2?</p>
  
  <p>Updated: 
  Now I changed package.json like that:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>{
    "name": "ng2-fundamentals-demo",
    "version": "1.0.0",
    "scripts": {
      "start": "tsc &amp;&amp; concurrently \"npm run tsc:w\" \"npm run server\" ",
      "server": "node node_modules/ng2f-server/server.js",
      "tsc": "tsc",
      "tsc:w": "tsc -w"
    },
    "keywords": [],
    "author": "",
    "licenses": [
      {
        "type": "MIT",
        "url": "https://github.com/angular/angular.io/blob/master/LICENSE"
      }
    ],
    "dependencies": {
      "@angular/common": "~2.4.0",
      "@angular/compiler": "~2.4.0",
      "@angular/core": "~2.4.0",
      "@angular/forms": "~2.4.0",
      "@angular/http": "~2.4.0",
      "@angular/platform-browser": "~2.4.0",
      "@angular/platform-browser-dynamic": "~2.4.0",
      "@angular/router": "^3.4.9",
      "angular-in-memory-web-api": "~0.2.4",
      "core-js": "^2.4.1",
      "rxjs": "5.0.1",
      "systemjs": "0.19.40",
      "zone.js": "^0.7.4"
    },
    "devDependencies": {
      "@types/core-js": "^0.9.37",
      "@types/jasmine": "2.5.36",
      "@types/node": "^6.0.46",
      "canonical-path": "0.0.2",
      "concurrently": "^3.2.0",
      "jasmine-core": "~2.4.1",
      "karma": "^1.3.0",
      "karma-chrome-launcher": "^2.0.0",
      "karma-cli": "^1.0.1",
      "karma-jasmine": "^1.0.2",
      "karma-jasmine-html-reporter": "^0.2.2",
      "lite-server": "^2.2.2",
      "lodash": "^4.16.4",
      "protractor": "~4.0.14",
      "rimraf": "^2.5.4",
      "tslint": "^3.15.1",
      "typescript": "~2.0.10"
    },
    "repository": {}
  }</code></pre>
  </div>
  </div>
  </p>
  
  <p>I ran:
  rm -rf node_modules/
  npm install @angular/cli -g
  npm install  @types/core-js --save-dev
  npm install @angular/router -save</p>
  
  <p>npm install
  npm run`</p>
  
  <p>and I got the same errors :</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>&gt; ng2-fundamentals-demo@1.0.0 start /var/www/html/ng2-fundamentals
  &gt; tsc &amp;&amp; concurrently "npm run tsc:w" "npm run server" 
  
  app/events/shared/event.service.ts(15,23): error TS2339: Property 'find' does not exist on type '({ id: number; name: string; date: string; time: string; price: number; imageUrl: string; session...'.
  node_modules/@angular/common/src/pipes/async_pipe.d.ts(44,38): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/aot/compiler.d.ts(32,38): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/aot/compiler_host.d.ts(20,33): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/directive_normalizer.d.ts(38,72): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/directive_normalizer.d.ts(40,74): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/i18n/extractor.d.ts(14,33): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/i18n/extractor.d.ts(22,35): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/jit/compiler.d.ts(44,49): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/jit/compiler.d.ts(46,65): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/metadata_resolver.d.ts(58,104): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/resource_loader.d.ts(13,23): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/util.d.ts(33,18): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/compiler/src/util.d.ts(34,46): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_init.d.ts(16,18): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_ref.d.ts(116,76): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_ref.d.ts(132,110): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_ref.d.ts(158,67): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/application_ref.d.ts(160,101): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/facade/lang.d.ts(12,17): error TS2304: Cannot find name 'Map'.
  node_modules/@angular/core/src/facade/lang.d.ts(13,17): error TS2304: Cannot find name 'Set'.
  node_modules/@angular/core/src/linker/compiler.d.ts(53,49): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/linker/compiler.d.ts(61,65): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/linker/ng_module_factory_loader.d.ts(14,34): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/linker/system_js_ng_module_factory_loader.d.ts(28,25): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/core/src/util/lang.d.ts(12,53): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/platform-browser-dynamic/src/resource_loader/resource_loader_impl.d.ts(10,23): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/router/src/config.d.ts(307,85): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/router/src/interfaces.d.ts(78,99): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/router/src/interfaces.d.ts(157,109): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/router/src/interfaces.d.ts(227,115): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/router/src/interfaces.d.ts(297,89): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/router/src/interfaces.d.ts(367,50): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/router/src/router.d.ts(392,70): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/router/src/router.d.ts(414,59): error TS2304: Cannot find name 'Promise'.
  node_modules/@angular/router/src/utils/collection.d.ts(36,79): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/core-js/index.d.ts(47,36): error TS2304: Cannot find name 'Iterable'.
  node_modules/@types/core-js/index.d.ts(350,48): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(351,52): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(352,34): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(353,34): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(354,34): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(355,61): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(356,60): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(357,65): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(357,97): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(358,60): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(359,58): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(360,59): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(361,58): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(362,61): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(362,117): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(363,42): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(365,81): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(366,78): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(367,76): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(368,73): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(431,6): error TS2304: Cannot find name 'Symbol'.
  node_modules/@types/core-js/index.d.ts(456,39): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/core-js/index.d.ts(464,59): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(465,59): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(467,48): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(468,69): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(472,40): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(474,48): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(494,55): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(495,45): error TS2304: Cannot find name 'PropertyKey'.
  node_modules/@types/core-js/index.d.ts(511,46): error TS2304: Cannot find name 'Iterable'.
  node_modules/@types/core-js/index.d.ts(512,43): error TS2304: Cannot find name 'Iterable'.
  node_modules/@types/core-js/index.d.ts(627,18): error TS2304: Cannot find name 'PromiseConstructor'.
  node_modules/@types/core-js/index.d.ts(642,32): error TS2304: Cannot find name 'Iterable'.
  node_modules/@types/core-js/index.d.ts(646,39): error TS2304: Cannot find name 'Iterable'.
  node_modules/@types/core-js/index.d.ts(646,53): error TS2304: Cannot find name 'Iterator'.
  node_modules/@types/core-js/index.d.ts(657,35): error TS2304: Cannot find name 'Promise'.
  node_modules/@types/core-js/index.d.ts(1280,34): error TS2339: Property 'for' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1284,41): error TS2339: Property 'hasInstance' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1288,48): error TS2339: Property 'isConcatSpreadable' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1292,38): error TS2339: Property 'iterator' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1296,36): error TS2339: Property 'keyFor' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1300,35): error TS2339: Property 'match' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1304,37): error TS2339: Property 'replace' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1308,36): error TS2339: Property 'search' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1312,37): error TS2339: Property 'species' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1316,35): error TS2339: Property 'split' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1320,41): error TS2339: Property 'toPrimitive' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1324,41): error TS2339: Property 'toStringTag' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(1328,41): error TS2339: Property 'unscopables' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2059,34): error TS2339: Property 'for' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2063,41): error TS2339: Property 'hasInstance' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2067,48): error TS2339: Property 'isConcatSpreadable' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2071,38): error TS2339: Property 'iterator' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2075,36): error TS2339: Property 'keyFor' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2079,35): error TS2339: Property 'match' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2083,37): error TS2339: Property 'replace' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2087,36): error TS2339: Property 'search' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2091,37): error TS2339: Property 'species' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2095,35): error TS2339: Property 'split' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2099,41): error TS2339: Property 'toPrimitive' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2103,41): error TS2339: Property 'toStringTag' does not exist on type 'SymbolConstructor'.
  node_modules/@types/core-js/index.d.ts(2107,41): error TS2339: Property 'unscopables' does not exist on type 'SymbolConstructor'.
  node_modules/rxjs/Observable.d.ts(68,60): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/Observable.d.ts(68,70): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/observable/PromiseObservable.d.ts(40,31): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/observable/PromiseObservable.d.ts(41,26): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/operator/toPromise.d.ts(2,60): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/operator/toPromise.d.ts(3,79): error TS2304: Cannot find name 'Promise'.
  node_modules/rxjs/operator/toPromise.d.ts(3,89): error TS2304: Cannot find name 'Promise'.
  
  npm ERR! Linux 3.19.0-32-generic
  npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "start"
  npm ERR! node v6.9.1
  npm ERR! npm  v4.0.3
  npm ERR! code ELIFECYCLE
  npm ERR! ng2-fundamentals-demo@1.0.0 start: `tsc &amp;&amp; concurrently "npm run tsc:w" "npm run server" `
  npm ERR! Exit status 2
  npm ERR! 
  npm ERR! Failed at the ng2-fundamentals-demo@1.0.0 start script 'tsc &amp;&amp; concurrently "npm run tsc:w" "npm run server" '.
  npm ERR! Make sure you have the latest version of node.js and npm installed.
  npm ERR! If you do, this is most likely a problem with the ng2-fundamentals-demo package,
  npm ERR! not with npm itself.
  npm ERR! Tell the author that this fails on your system:
  npm ERR!     tsc &amp;&amp; concurrently "npm run tsc:w" "npm run server" 
  npm ERR! You can get information on how to open an issue for this project with:
  npm ERR!     npm bugs ng2-fundamentals-demo
  npm ERR! Or if that isn't available, you can get their info via:
  npm ERR!     npm owner ls ng2-fundamentals-demo
  npm ERR! There is likely additional logging output above.
  
  npm ERR! Please include the following file with any support request:
  npm ERR!     /var/www/html/ng2-fundamentals/npm-debug.log</code></pre>
  </div>
  </div>
  </p>