Angular 10 中主组件内的延迟加载模块

我的应用程序中有两个模块，其中一个是app.module另一个是user.module这会被延迟加载。上app.module我有一个sign-in成分，sign-up组件和main成分。这main.component是由导航栏和侧边栏组成的组件。我想要里面的每个组件user.module加载到里面main.component。但我在控制台中收到错误Error: Cannot match any routes. URL Segment: 'user/home'.

应用程序路由

import { MainComponent } from './main/main.component';
import { SignInComponent } from './sign-in/sign-in.component';
import { SignUpComponent } from './sign-up/sign-up.component';

const routes: Routes = [

      { path: 'sign-in', component: SignInComponent, pathMatch: 'full' },
      { path: '', redirectTo: 'sign-in', pathMatch: 'full' },
      { path: 'sign-up', component: SignUpComponent }
      {
        path: '',
        component: MainComponent,
        children: [
          {
            path: 'user',
            loadChildren: () => import('./user/user.module').then(m => m.UserModule)
          },
    
        ]
    
      },
      /* { path: '500', component: Error500Component },
      { path: '**', component: Error404Component }, */
    ];
    
    @NgModule({
      imports: [RouterModule.forRoot(routes)],
      exports: [RouterModule]
    })
    export class AppRoutingModule { }

用户路由

import { HomeComponent } from './home/home.component';
import { Routes, RouterModule } from '@angular/router';
import { FriendsComponent } from './friends/friends.component';

    const routes: Routes = [
  {
    path: '',
    children: [
      { path: 'home', component: HomeComponent },
      { path: 'friends', component: FriendsComponent }
    ]
  }
];

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

您应该导入和导出UserRoutingModule in UserModule.

@NgModule({
  declarations: [..],
  imports: [UserRoutingModule],
  exports: [UserRoutingModule],
  providers: [..]
})
export class UserModule {}