CODEWITHSUNDEEP
angular
Pedro Doria Meunier
Pedro Doria Meunier

Reputation: 39

Angular 4 - Error: No provider for HttpParams

Scratching my head on this error. 'Error: No provider for HttpParams!' Migrating from Http to HttpClient. Imported HttpClientModule in app.module.ts and made it a member in @NgModule -> imports

There is still an import for HttpModule in app.module.ts. Can it be clashing with the new HttpClientModule?

In my service I have:

import {HttpClient, HttpHeaders, HttpParams} from "@angular/common/http";

Can someone please enlighten me as to why this is happening? TIA, Pedro.

Upvotes: 3

Views: 4038

Answers (2)

Pawan Kumar Singh
Pawan Kumar Singh

Reputation: 27

If you are using this [params: HttpParams] in your constructor, please remove it from the constructor.

import {HttpClient, HttpParams, HttpHeaders} from '@angular/common/http';
import {Injectable} from '@angular/core';

@Injectable({
  providedIn: 'root'
})
export class MarksService {
  constructor(private http: HttpClient, private params: HttpParams) {}
}

Upvotes: 3

Riven Li
Riven Li

Reputation: 61

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.

Upvotes: 3

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