import { ScrollTabsComponent } from '../components/scrolltabs';

@NgModule({
  declarations: [
    ...
    ScrollTabsComponent,
    ...
  ],
})

import { NgModule } from '@angular/core';
import { HelloIonicPage } from './hello-ionic';
import { IonicPageModule } from 'ionic-angular';
import { ScrollTabsComponentModule } from '../../components/scrolltabs';

@NgModule({
	declarations: [
		HelloIonicPage
	],
	imports: [
        ScrollTabsComponentModule,
		IonicPageModule.forChild(HelloIonicPage)
	],
	entryComponents: [
		HelloIonicPage
	]
})
export class HelloIonicPageModule {}

<scroll-tabs #scrollTab [tabs]="tabs" (onSelectedTab)="tabChange($event)"></scroll-tabs>

Cordova CLI: 6.5.0 
Ionic Framework Version: 2.3.0
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.1.4
ios-deploy version: 1.9.0 
ios-sim version: 5.0.8 
OS: macOS Sierra
Node Version: v7.6.0
Xcode version: Xcode 8.2.1 Build version 8C1002