title: No provider for TabsPage in ionic 3
body: <p>When running <code>ionic serve</code> I am getting an error in the browser <code>No Provider for TabsPage</code>.</p>
  
  <p>The TabsPage is listed in the <code>app.module.ts</code>file:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>import { NgModule, ErrorHandler } from '@angular/core';
  import { BrowserModule } from '@angular/platform-browser';
  import { IonicApp, IonicModule, IonicErrorHandler } from 'ionic-angular';
  import { MyApp } from './app.component';
  
  import { AboutPage } from '../pages/about/about';
  import { ContactPage } from '../pages/contact/contact';
  import { HomePage } from '../pages/home/home';
  import { CalendarPage } from '../pages/calendar/calendar';
  import { NewsPage } from '../pages/news/news';
  import { SettingsPage } from '../pages/settings/settings';
  import { TabsPage } from '../pages/tabs/tabs';
  
  import { StatusBar } from '@ionic-native/status-bar';
  import { SplashScreen } from '@ionic-native/splash-screen';
  import { OneSignal } from '@ionic-native/onesignal';
  import { AppVersion } from '@ionic-native/app-version';
  import { Calendar } from '@ionic-native/calendar';
  import { GoogleAnalytics } from '@ionic-native/google-analytics';
  import { InAppBrowser } from '@ionic-native/in-app-browser';
  import { SecureStorage } from '@ionic-native/secure-storage';
  import { Toast } from '@ionic-native/toast';
  
  
  
  import { CalendarProvider } from '../providers/calendar/calendar';
  import { SettingsProvider } from '../providers/settings/settings';
  import { ConnectivityProvider } from '../providers/connectivity/connectivity';
  import { NewsProvider } from '../providers/news/news';
  import { CommonFunctionsProvider } from '../providers/common-functions/common-functions';
  
  @NgModule({
    declarations: [
      MyApp,
      CalendarPage,
      NewsPage,
      SettingsPage,
      AboutPage,
      ContactPage,
      HomePage,
      TabsPage
    ],
    imports: [
      BrowserModule,
      IonicModule.forRoot(MyApp)
    ],
    bootstrap: [IonicApp],
    entryComponents: [
      MyApp,
      AboutPage,
      ContactPage,
      HomePage,
      CalendarPage,
      NewsPage,
      SettingsPage,
      TabsPage
    ],
    providers: [
      StatusBar,
      SplashScreen,
      OneSignal,
      AppVersion,
      Calendar,
      GoogleAnalytics,
      InAppBrowser,
      SecureStorage,
      Toast,
      {provide: ErrorHandler, useClass: IonicErrorHandler},
      SettingsProvider,
      CalendarProvider,
      ConnectivityProvider,
      NewsProvider,
      CommonFunctionsProvider
    ]
  })
  export class AppModule {}</code></pre>
  </div>
  </div>
  </p>