Not Found 404 error on importing the module

[nickornotto]

I installed the spinner in my Angular 5 app. It's been installed into node_modules folder

I imported the modeul but when I'm trying to add it to imports I'm getting an error:

Error: "Fetch error: 404 Not Found
  Instantiating http://localhost:port/ng4-loading-spinner
  Loading http://localhost:port/app/app.module.js
  Loading client/main.js"

My app component:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule, ReactiveFormsModule } from '@angular/forms'
import { HttpModule } from '@angular/http'
import { Ng4LoadingSpinnerModule } from 'ng4-loading-spinner';

import { AppComponent } from './app.component';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        FormsModule,
        HttpModule,
        ReactiveFormsModule,
        Ng4LoadingSpinnerModule.forRoot() // Gives an error described above
    ],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }