Runtime error: Cannot find module "ionic-native"

I am trying to connect ionic app 2 to backand and get this runtime error:

Unable to find module "ion-native".

I've tried working npm install @ionic-native/core --save

- but doesn't help. Many thanks

Setting details here: Ionic Framework: 3.0.1 Ionic Application Scripts: 1.3.0 Angular Core: 4.0.0 Angular CLI Compiler: 4.0.0 Node: 6.10.1 OS Platform: Windows 10 Navigator Platform: Win32 User Agent: Mozilla / 5.0 (Windows NT 10.0, Win64, x64) AppleWebKit / 537.36 (KHTML like Gecko) Chrome / 57.0.2987.133 Safari / 537.36

Error: Cannot find module "ionic" at g (localhost: 8100 / build / polyfills.js: 3: 7133) at Object.module.exports (localhost: 8100 / build / main.js: 114616: 7) at webpack_require (localhost: 8100 / build / main.js: 20:30) to Object. (localhost: 8100 / build / main.js: 86362: 73) in webpack_require (localhost: 8100 / build / main.js: 20:30) in Object. (localhost: 8100 / build / main.js: 140153: 70) to webpack_require (localhost: 8100 / build / main.js: 20:30) to localhost: 8100 / build / main.js: 66: 18

Package.Json

in the following way:

{
  "name": "ionic-hello-world",
  "author": "Ionic Framework",
  "homepage": "http://ionicframework.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": "4.0.0",
    "@angular/compiler": "4.0.0",
    "@angular/compiler-cli": "4.0.0",
    "@angular/core": "4.0.0",
    "@angular/forms": "4.0.0",
    "@angular/http": "4.0.0",
    "@angular/platform-browser": "4.0.0",
    "@angular/platform-browser-dynamic": "4.0.0",
    "@ionic-native/core": "3.4.2",
    "@ionic-native/splash-screen": "3.4.2",
    "@ionic-native/status-bar": "3.4.2",
    "@ionic/storage": "2.0.1",
    "ionic-angular": "3.0.1",
    "ionicons": "3.0.0",
    "rxjs": "5.1.1",
    "socket.io-client": "^1.7.3",
    "sw-toolbox": "3.4.0",
    "zone.js": "^0.8.4"
  },
  "devDependencies": {
    "@ionic/app-scripts": "1.3.0",
    "@types/node": "7.0.13",
    "@types/socket.io-client": "1.4.29",
    "typescript": "~2.2.1"
  },
  "cordovaPlugins": [
    "cordova-plugin-whitelist",
    "cordova-plugin-statusbar",
    "cordova-plugin-console",
    "cordova-plugin-device",
    "cordova-plugin-splashscreen",
    "ionic-plugin-keyboard",
    "cordova-plugin-inappbrowser"
  ],
  "cordovaPlatforms": [],
  "description": "myApp: An Ionic project"
}