No provider for HttpClient

To resolve this problem HttpClient is Angular's mechanism for communicating with a remote server over HTTP.

To make HttpClient available everywhere in the app,

1. open the root AppModule,

2. import the HttpClientModule from @angular/common/http,

   import { HttpClientModule } from '@angular/common/http';

3. add it to the @NgModule.imports array.

   imports:[HttpClientModule, ]

You have not provided providers in your module:

<strike>import { HttpModule } from '@angular/http';</strike>import { HttpClientModule, HttpClient } from '@angular/common/http';@NgModule({  imports: [    BrowserModule,    HttpClientModule,    BrowserAnimationsModule,    FormsModule,    AppRoutingModule  ],  providers: [ HttpClientModule, ... ]  // ...})export class MyModule { /* ... */ }

Using HttpClient in Tests

You will need to add the HttpClientTestingModule to the TestBed configuration when running ng test and getting the "No provider for HttpClient" error:

// Http testing module and mocking controllerimport { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';// Other importsimport { TestBed } from '@angular/core/testing';import { HttpClient, HttpErrorResponse } from '@angular/common/http';describe('HttpClient testing', () => {  let httpClient: HttpClient;  let httpTestingController: HttpTestingController;  beforeEach(() => {    TestBed.configureTestingModule({      imports: [ HttpClientTestingModule ]    });    // Inject the http service and test controller for each test    httpClient = TestBed.get(HttpClient);    httpTestingController = TestBed.get(HttpTestingController);  });  it('works', () => {  });});

You are getting error for HttpClient so, you are missing HttpClientModule for that.

You should import it in app.module.ts file like this -

import { HttpClientModule } from '@angular/common/http';

and mention it in the NgModule Decorator like this -

@NgModule({...imports:[ HttpClientModule ]...})

If this even doesn't work try clearing cookies of the browser and try restarting your server. Hopefully it may work, I was getting the same error.