AppRoutingModulelib.ts

import { NgModule, Component } from '@angular/core';
import { CommonModule } from '@angular/common';
import { RouterModule, Routes } from '@angular/router';
import { LoginComponent } from '../login/login.component';
const routes: Routes = [
  {
    path: '', // default route for the security application.
    component: LoginComponent
  }
];
@NgModule({
  declarations: [],
  imports: [
    CommonModule,
    RouterModule.forChild(routes)
  ]
})
export class AppRoutingModule { }