IonRouterOutlet, no provider for NavController

[moda20]

Bug Report

Ionic Info
Run ionic info from a terminal/cmd prompt and paste the output below.

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        : 1.0.0

Cordova:

   cordova (Cordova CLI) : 8.1.1 (cordova-lib@8.1.0)
   Cordova Platforms     : not available
   Cordova Plugins       : not available

System:

   Android SDK Tools : 26.1.1 (/Users/theronin/Downloads/android-sdk-macosx)
   NodeJS            : v8.10.0 (/usr/local/bin/node)
   npm               : 5.6.0
   OS                : macOS High Sierra

Describe the Bug
I am porting an ionic 3 app to ionic4. I fixed most migration issues, but stumbled upon the error when running ng serve
saying :

Error: StaticInjectorError(AppModule)[IonRouterOutlet -> NavController]: 
  StaticInjectorError(Platform: core)[IonRouterOutlet -> NavController]: 
    NullInjectorError: No provider for NavController!

Steps to Reproduce
Steps to reproduce the behavior:
I don't think I can give steps to reproduce, since it is a kind of special error.

Related Code
my app.module.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RouterModule, RouteReuseStrategy, Routes } from '@angular/router';

import {IonicModule, IonicRouteStrategy, Platform} from '@ionic/angular';
import { SplashScreen } from '@ionic-native/splash-screen/ngx';
import { StatusBar } from '@ionic-native/status-bar/ngx';

import { MyApp} from './app.component';
import { AppRoutingModule } from './app-routing.module';
import {CommonModule} from '@angular/common';
import {FormsModule} from '@angular/forms';

@NgModule({
  declarations: [MyApp],
  entryComponents: [MyApp],
  imports: [BrowserModule,
      CommonModule,
      FormsModule,
      IonicModule,
      AppRoutingModule],
  providers: [
    StatusBar,
    SplashScreen,
    { provide: RouteReuseStrategy, useClass: IonicRouteStrategy },
      Platform
  ],
  bootstrap: [MyApp]
})
export class AppModule {}

Expected Behavior
run the app correctly

Additional Context
,

[moda20]

I had to add NavControlleras provider in my app.module.ts and it worked, I thought we got over the navcontroller in ionic 4

[paulstelzer]

@moda20 You do not need to add NavController to the provider section. You only have to initialize the IonicModule correctly. In your app.module.ts you have to import IonicModule.forRoot() and then all services like NavController, ToastController etc will work

[moda20]

That worked flawlessly . Thanks

[ionitron-bot]

Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.