# Error while building ionic 2 app

**URL:** <https://forum.ionicframework.com/t/error-while-building-ionic-2-app/83315>\
**Category:** ionic-v3\
**Created:** [March 17, 2017, 5:36pm UTC](https://forum.ionicframework.com/t/error-while-building-ionic-2-app/83315 "2017-03-17T17:36:08Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![biertiem](https://avatars.discourse-cdn.com/v4/letter/b/a587f6/32.png) [@biertiem](https://forum.ionicframework.com/u/biertiem)\
**Post date:** [March 17, 2017, 5:36pm UTC](https://forum.ionicframework.com/t/error-while-building-ionic-2-app/83315/1 "2017-03-17T17:36:08Z")

</div>

Help! I’m desperate…can’t get this fixed. Error while building, see below.

ionic cordova:build platform android --debug  
TypeError: Cannot read property ‘private’ of undefined  
at inputs.filter (\node\_modules@ionic\cli-utils\dist\index.js:20826:31)  
at Array.filter (native)  
at BuildCommand.getCleanInputsForTelemetry (\node\_modules@ionic\cli-utils\dist\index.js:20825:18)  
at BuildCommand. (\node\_modules@ionic\cli-utils\dist\index.js:20788:48)  
at Generator.next ()  
at fulfilled (\node\_modules@ionic\cli-utils\dist\index.js:20731:58)

I tried updating different items already:  
npm install -g cordova@latest  
ionic platform update android@6.1.2  
npm install @ionic/app-scripts@latest --save-dev

please help! Can’t get my app to production!

---

<div class="post-metadata">

**Author:** ![mhartington](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/mhartington/32/137757_2.png) [@mhartington](https://forum.ionicframework.com/u/mhartington)\
**Post date:** [March 17, 2017, 6:57pm UTC](https://forum.ionicframework.com/t/error-while-building-ionic-2-app/83315/2 "2017-03-17T18:57:37Z")

</div>

What does `ionic --version` print out for the CLI version?  
This looks like a v3-beta issue?

---

<div class="post-metadata">

**Author:** ![biertiem](https://avatars.discourse-cdn.com/v4/letter/b/a587f6/32.png) [@biertiem](https://forum.ionicframework.com/u/biertiem)\
**Post date:** [March 17, 2017, 7:19pm UTC](https://forum.ionicframework.com/t/error-while-building-ionic-2-app/83315/3 "2017-03-17T19:19:29Z")

</div>

yes it is the v3 beta, sorry forget to mention that

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<div class="post-metadata">

**Author:** ![mhartington](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/mhartington/32/137757_2.png) [@mhartington](https://forum.ionicframework.com/u/mhartington)\
**Post date:** [March 20, 2017, 3:33pm UTC](https://forum.ionicframework.com/t/error-while-building-ionic-2-app/83315/4 "2017-03-20T15:33:37Z")

</div>

Yeah that might be end cause of the issue. Can you post your package.json version for dev deps?

```json
{
  "devDependencies": {
    "@ionic/app-scripts": "1.1.4",
    "typescript": "2.0.9",
    "@ionic/cli-plugin-cordova": "0.0.9",
    "@ionic/cli-build-ionic-angular": "0.0.3"
  }
}

```

Something might be out of date there causing issues.

---

<div class="post-metadata">

**Author:** ![biertiem](https://avatars.discourse-cdn.com/v4/letter/b/a587f6/32.png) [@biertiem](https://forum.ionicframework.com/u/biertiem)\
**Post date:** [March 21, 2017, 8:37pm UTC](https://forum.ionicframework.com/t/error-while-building-ionic-2-app/83315/5 "2017-03-21T20:37:10Z")

</div>

Ok I solved that issue, but now I get Typescript errors for every item from the native imports, when running ionic serve. For example:

property hide does not exist on type typeof SplashScreen

I changed my imports to

```
import { LocalNotifications } from '@ionic-native/local-notifications';
import { SplashScreen } from '@ionic-native/splash-screen';
import { StatusBar } from '@ionic-native/status-bar';

```

My ionic info:

```
 ordova CLI: 6.5.0
Ionic Framework Version: 2.2.0
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.1.4
ios-deploy version: Not installed
ios-sim version: Not installed
OS: Windows 10
Node Version: v7.0.0
Xcode version: Not installed

```

My ionic plugin ls

```
cordova-plugin-app-event 1.2.0 "Application Events"
cordova-plugin-app-version 0.1.9 "AppVersion"
cordova-plugin-camera 2.4.0 "Camera"
cordova-plugin-compat 1.1.0 "Compat"
cordova-plugin-console 1.0.6 "Console"
cordova-plugin-device 1.1.5 "Device"
cordova-plugin-fcm 2.1.1 "FCMPlugin"
cordova-plugin-nativestorage 2.2.1 "NativeStorage"
cordova-plugin-splashscreen 4.0.2 "Splashscreen"
cordova-plugin-statusbar 2.2.2 "StatusBar"
cordova-plugin-whitelist 1.3.2 "Whitelist"
cordova-plugin-x-socialsharing 5.1.6 "SocialSharing"
de.appplant.cordova.plugin.local-notification 0.8.4 "LocalNotification"
ionic-plugin-keyboard 2.2.1 "Keyboard"
phonegap-plugin-barcodescanner 6.0.5 "BarcodeScanner"

```

My package.json

```
"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-native/core": "^3.1.0",
    "ionicons": "3.0.0",
    "ionic-angular": "2.2.0",
    "rxjs": "5.0.1",
    "zone.js": "0.7.2",
    "sw-toolbox": "3.5.1",
    "babel-core": "^6.24.0",
    "d": "^1.0.0",
    "ng2-translate": "^4.0.0",
    "@ionic-native/barcode-scanner": "^3.1.0",
    "@ionic-native/local-notifications": "^3.1.0",
    "@ionic-native/native-storage": "^3.1.0",
    "@ionic-native/social-sharing": "^3.1.0",
    "@ionic-native/splash-screen": "^3.1.0",
    "@ionic-native/status-bar": "^3.1.0"
    
  },
  "devDependencies": {
    "@ionic/app-scripts": "^1.1.4",
    "@ionic/cli-build-ionic-angular": "0.0.3",
    "@ionic/cli-plugin-cordova": "0.0.9",
    "typescript": "2.0.9"
  }

```

tsc -v

`Version 2.2.1`