edit

src/app/routes/menu-manager/menu-manager-routing.module.ts

@@ -0,0 +1,14 @@
+import { NgModule } from '@angular/core';
+import { RouterModule, Routes } from '@angular/router';
+import { MenuManagerComponentsIndexComponent } from './components/index/index.component';
+
+const routes: Routes = [
+  { path: '', redirectTo: 'index', pathMatch: 'full' },
+  { path: 'index', component: MenuManagerComponentsIndexComponent },
+];
+
+@NgModule({
+  imports: [RouterModule.forChild(routes)],
+  exports: [RouterModule],
+})
+export class MenuManagerRoutingModule {}