Angular 7 : Injected service is undefined

Question

I tried to inject AccountService in the LoginService but it won\'t ,the accountService is undefined but in the other hand the authServiceProvider is defined .

Contraril

Answer 1

HttpClientModule is required for HttpClient. Just import in AppModule.

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { CoreModule } from './core/core.module';
import { HttpClientModule } from '@angular/common/http';
import { MatTreeModule } from '@angular/material';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    BrowserAnimationsModule,
    AppRoutingModule,
    CoreModule,
    MatTreeModule,
    FormsModule,
    ReactiveFormsModule,
    HttpClientModule //add this as fix, simple
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }