No provider for HttpClient!

// error at HttpClient in app.component.ts
import { HttpClient } from '@angular/common/http';
import { Component, OnInit } from '@angular/core';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit{
constructor(private http: HttpClient) {
}
ngOnInit() {
this.http.get('https://jsonplaceholder.typicode.com/todos').subscribe()
}
}

Add HttpClientModule to imports in app.module.ts

// app.module.ts
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { HttpClientModule } from '@angular/common/http';
@NgModule({
declarations: [
AppComponent,
],
imports: [
BrowserModule,
AppRoutingModule,
BrowserAnimationsModule,
HttpClientModule,
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }