title: IONIC2 Apollo Graphql Eror: Cannot find name 'AsyncIterator'
body: <p>im starting develop ionic app using graphql service but im got some problem in nodes modules, how can i solve this?</p>
  
  <pre><code>[14:32:44]  typescript: D:/ionic/node_modules/@types/graphql/subscription/subscribe.d.ts, line: 17 
              Cannot find name 'AsyncIterator'.
  
        L16:      subscribeFieldResolver?: GraphQLFieldResolver&lt;any, any&gt;
        L17:  ): AsyncIterator&lt;ExecutionResult&gt;;
  
  [14:32:44]  typescript: D:/ionic/node_modules/@types/graphql/subscription/subscribe.d.ts, line: 29 
              Cannot find name 'AsyncIterable'.
  
        L28:      fieldResolver?: GraphQLFieldResolver&lt;any, any&gt;
        L29:  ): AsyncIterable&lt;any&gt;;
  </code></pre>
  
  <p>this my package.json</p>
  
  <pre><code> {
        "name": "Test",
        "author": "test,
        "homepage": "http://test.com",
        "private": true,
        "scripts": {
          "clean": "ionic-app-scripts clean",
          "build": "ionic-app-scripts build",
          "ionic:build": "ionic-app-scripts build",
          "ionic:serve": "ionic-app-scripts serve"
        },
        "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": "^1.1.9",
          "angular2-jwt": "^0.1.28",
          "apollo-angular": "^0.13.0",
          "apollo-client": "^1.9.1",
          "graphql-tag": "^2.4.2",
          "ionic-angular": "^2.1.0",
          "ionic-native": "2.5.1",
          "ionicons": "3.0.0",
          "rxjs": "5.2.0",
          "sw-toolbox": "3.6.0",
          "zone.js": "0.7.7"
        },
        "devDependencies": {
          "@ionic/app-scripts": "^2.1.4",
          "typescript": "^2.3.4"
        },
        "cordovaPlugins": [
          "ionic-plugin-keyboard",
          "cordova-plugin-whitelist",
          "cordova-plugin-console",
          "cordova-plugin-statusbar",
          "cordova-plugin-device",
          "cordova-plugin-splashscreen",
          "cordova-plugin-camera",
          "cordova-plugin-app-version"
        ],
        "cordovaPlatforms": [],
        "description": "TEST"
      }
  </code></pre>