带有延迟加载模块和子路由的Angular 7路由器'**'通配符不起作用?

我正在尝试使用来自Angular路由器的通配符'**'创建默认路由.该默认路由将加载一个惰性模块，然后它必须解决自己的路由.问题是，当我进行以下配置时，无法按预期解决:

I'm trying to create a default route using the wildcard '**' from Angular's router. That default route will load a lazy module and then it will have to solve its own routes. The problem is that when I have the following configuration it does not resolve as expected:

export const routes = [
  {
    path: '',
    component: 'DashboardComponent'
  },
  {
    path: '**',
    loadChildren: './lazy/lazy.module#LazyModule'
  }
];

@NgModule({
  imports: [
    BrowserModule,
    RouterModule.forRoot(routes)
  ],
  declarations: [AppComponent]
  bootstrap: [AppComponent]
})
export class AppModule {}

const routes = [
  {
    path: '', 
    component: MainComponent
  }
  {
    path: 'hello',  // hoping to pick up the wildcard and resolve the route
    component: HelloComponent
  }
];

@NgModule({
  imports: [
    CommonModule,
    RouterModule.forChild(routes)
  ],
  declarations: [
    AnyComponent,
    EditComponent
  ]
})
export default class LazyModule {}

例如.使用mydomain.com/hello，它不会显示HelloComponent，而是显示MainComponent.

For example. With mydomain.com/hello it does not show me the HelloComponent, it shows me the MainComponent.

我的配置有问题吗?还是应该这样工作?

Is there something wrong with my configuration or should it not work like this?

提前谢谢.