Ionic 4 ios build not working in ios (iphone/ipad) real device

my ionic project info

Ionic:

   ionic (Ionic CLI)             : 4.2.1 (/usr/local/lib/node_modules/ionic)
   Ionic Framework               : @ionic/angular 4.0.0-beta.12
   @angular-devkit/build-angular : 0.7.5
   @angular-devkit/schematics    : 0.7.5
   @angular/cli                  : 6.1.5
   @ionic/angular-toolkit        : 2.1.1

Cordova:

   cordova (Cordova CLI) : 8.1.2 (cordova-lib@8.1.1)
   Cordova Platforms     : android 7.1.1, ios 4.5.5
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 2.5.3, (and 11 other plugins)

System:

   ios-deploy : 1.9.4
   NodeJS     : v10.11.0 (/usr/local/Cellar/node/11.8.0/bin/node)
   npm        : 6.4.1
   OS         : macOS High Sierra
   Xcode      : Xcode 10.1 Build version 10B61

I have created build and run in ios emulator all working fine
but same build I run in real device “.scss” not woking in Iphone 6s

Iphone 6s screen

and only display black screen in Ipad

Ipad screen

While you wait for better answers, it might be useful to try to see if the problem persists with current versions of things, especially since you’re using obsolete beta versions at the moment.

I have updated stable 4.0.0 / 4.0.1 / 4.0.2 / 4.0.3 version in app but facing same issue in (Iphone / Ipad) real device and emulator both

I have updated 4.11.5 latest version but app still not running in real device / emulator

Referance : https://www.npmjs.com/package/@ionic/angular

This is emulator screen for

<ion-input></ion-input>

Screenshot%20from%202019-11-28%2019-12-06

<ion-header></ion-header>

Screenshot%20from%202019-11-28%2019-16-59

<ion-footer></ion-footer>

Screenshot%20from%202019-11-28%2019-16-59%20(1)

ionic default component not working in real device
Like

<ion-header></ion-header>
<ion-footer></ion-footer>
<ion-icon></ion-icon>
<ion-input></ion-input>
<ion-button><ion-button>