Angular 子模块的延迟加载不起作用？

Question

我有一个名为 branch 的子模块，我只想在导航到“/branch”时加载它 url 但出现以下错误

ERROR Error: Uncaught (in promise): TypeError: undefined is not a function
TypeError: undefined is not a function
    at Array.map (<anonymous>)
    at webpackAsyncContext ($_lazy_route_resource lazy namespace object:15)

导航与routerLink一起使用如下

<button mat-raised-button color="accent" [routerLink]="['/branch']">View Branches</button>

app-routing-module.ts 是：

const routes: Routes = [
  { path: 'branch', loadChildren: './branch/branch.module#BranchModule' },
];

分支模块是：

@NgModule({
  imports: [
    CommonModule,

    RouterModule.forChild([{
        path: '', component: BranchComponent,
      },
      {
        path: 'view/:id', component: ViewBranchComponent
      }
    ])
  ],
  declarations: [BranchComponent, ViewBranchComponent],
  exports: [BranchComponent, ViewBranchComponent, RouterModule]
})
export class BranchModule { }

请有人告诉我这里出了什么问题

Answer 1

似乎您已将 LazyLoad 模块导入 app.module.here，请参阅此处的相关问题 rom Github。

Angular 子模块的延迟加载不起作用？

Angular lazy load of child module is not working?

angular

angular-routing

angular7

angular-routerlink