Router link not working for component inside shared module

Question

I wrote a module called "Client", which has several components, such as login, home and registration. Now I have created a common module that also has 2 components, such as a header and a footer. Since the header and footer will be shared by all components in the client module, I put them in a common module. The common module is imported into the client module.

Now there is a router link that points to a component inside the client module. These router links are not interpreted as href. But if I put these header and footer components directly in the client module, then these router links become interpretable.

I have included code snippets below.

Common module file

import { NgModule } from '@angular/core';

import { HeaderComponent } from './header/header.component';
import { FooterComponent } from './footer/footer.component';

@NgModule({
  imports: [ ],
  declarations: [ HeaderComponent, FooterComponent ],
  exports: [ HeaderComponent, FooterComponent ]
})

export class SharedModule { }

Client Module File

import { NgModule } from '@angular/core';

import { SharedModule } from './shared/shared.module';
import { CustomerRoutingModule } from './customer-routing.module';

import { CustomerComponent } from './customer.component';
import { CustomerHomeComponent } from './home/home.component';
import { CustomerLoginComponent } from './login/login.component';
import { CustomerRegisterComponent } from './register/register.component';

@NgModule({
  imports: [ SharedModule, CustomerRoutingModule ],
  declarations: [ CustomerComponent, CustomerHomeComponent, CustomerLoginComponent, CustomerRegisterComponent ]
})

export class CustomerModule { }

Html header component

<div class="header-wrapper">
    <nav class="navbar navbar-light bg-faded">
        <button class="navbar-toggler hidden-lg-up" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation"></button>
        <div class="collapse navbar-toggleable-md" id="navbarResponsive">
            <a class="navbar-brand header-logo" routerLink="./">Your space your time</a>
            <ul class="nav navbar-nav header-menu float-lg-right">
                <li class="nav-item header-menu-item">
                    <a class="nav-link header-menu-link" href="#">About</a>
                </li>
                <li class="nav-item header-menu-item">
                    <a class="nav-link header-menu-link" href="#">Services</a>
                </li>
                <li class="nav-item header-menu-item">
                    <a class="nav-link header-menu-link" routerLink="./signin" routerLinkActive="active">Login <span class="sr-only">(current)</span></a>
                </li>
                <li class="nav-item header-menu-item">
                    <a class="nav-link header-menu-link" routerLink="./signup" routerLinkActive="active">Register</a>
                </li>
            </ul>
        </div>
    </nav>
</div>

Client Routing Module

import { NgModule }             from '@angular/core';
import { RouterModule, Routes } from '@angular/router';

import { CustomerComponent } from './customer.component';
import { CustomerHomeComponent } from './home/home.component';
import { CustomerLoginComponent } from './login/login.component';
import { CustomerRegisterComponent } from './register/register.component';

const customerRoutes: Routes = [
  { path: '', redirectTo: 'customer', pathMatch: 'full' },
  { path: 'customer', component: CustomerComponent,
    children: [
      { path: '', redirectTo: 'home', pathMatch: 'full' },
      { path: 'home', component: CustomerHomeComponent },
      { path: 'signin', component: CustomerLoginComponent },
      { path: 'signup', component: CustomerRegisterComponent }
    ]
  }
];

@NgModule({
  imports: [
    RouterModule.forChild(customerRoutes)
  ],
  exports: [
    RouterModule
  ]
})
export class CustomerRoutingModule { }

Answer 1

If you understand correctly, then your mistake is that you are not importing the RouterModule into your SharedModule. So just import the RouterModule to get the "routerLink" directive, then it should work:

@NgModule({
  imports: [RouterModule ],
  declarations: [ HeaderComponent, FooterComponent ],
  exports: [ HeaderComponent, FooterComponent ]
})

: , SharedModule/CoreModule. , ( ). CoreModule. SharedModule , , , . .

, , Angular : https://angular.io/styleguide#!#04-10