NullInjectorError: No provider for e! on Angular 7

NullInjectorError: No provider for e! on Angular 7

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NullInjectorError: No provider for e! on Angular 7
Tag : typescript , By : Per
Date : November 28 2020, 04:01 AM

seems to work fine You're missing the HttpClientModule in your app module. add this line to the top of your app module
import { HttpClientModule } from '@angular/common/http';
imports: [
declarations: [
providers: [DashboardService],
bootstrap: [AppComponent]})

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Upgrading to Angular 5 NullInjectorError: No provider for

Tag : angular , By : Zelos
Date : March 29 2020, 07:55 AM
will help you Im trying to upgrade to angular 4, but when running the code I get an error: , Change this:
import { AuthService } from '../services/auth.service.js';
import { AuthService } from '../services/auth.service';

Angular 5 NullInjectorError: No provider for n

Tag : javascript , By : ERaubenheimer
Date : March 29 2020, 07:55 AM
it helps some times This is probably due to the differences of JIT (just-in-time) and AOT (ahead-of-time) compiler. Read more about this in the docs.
If you run ng serve or ng build it will use JIT by default. With the --prod flag however, AOT is used.

NullInjectorError: No provider for String! in angular 6

Tag : angular , By : cmhudson
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Any parameter added to service angular will try to inject this by DI system. DataService considers the base class for api service in this case and we don't need to make it injectable. So just remove the injectable decorator
export class DataService {

  constructor(private url: string , private http: Http) {


Angular : NullInjectorError: No provider for HttpClient

Tag : angular , By : Richard
Date : March 29 2020, 07:55 AM
To fix the issue you can do I have implemented a simple angular application that has a component that calls a service which in turn calls an api. I have registered the service in the provider of the app module but getting the following error . , Add
import { HttpClientModule } from '@angular/common/http'; 

  imports:      [ HttpClientModule ]

Angular NullInjectorError: No Provider for MatDialog

Tag : angular , By : Sinisa Ruzin
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Please note that in Angular Material you have to import all elements module into your module.ts. You have to import and add module in your module.ts like this
import {MatDialogModule} from '@angular/material/dialog';

import : [MatDialogModule]
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