类型 "LocationComponent" 是 2 modules:Angular 6 的声明的一部分？

Question

我是 angular 的新手，所以我无法使用其他堆栈流答案来解决我的错误。请帮忙。

我正在使用 angular 6. 我已经有了一个基本格式，所以我正在尝试添加子页面。但是我得到了这个错误 'Type LocationComponent is part of the declarations of 2 modules' 并停留了大约 2 天。

这是我的 src 文件夹格式的图片：

我的app.module.ts编码如下：

import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { CommonModule, LocationStrategy, HashLocationStrategy } from '@angular/common';
import { NgModule, NgModuleFactory } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { HttpClientModule, HttpClient } from '@angular/common/http';
import { Routes, RouterModule } from '@angular/router';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { LocationComponent } from './masterpage/location/location.component';
import { StorageComponent } from './masterpage/storage/storage.component';
@NgModule({
  declarations: [
    AppComponent,
    SpinnerComponent,         
    LocationComponent,
    StorageComponent
  ],
  imports: [
    CommonModule,
    BrowserModule,
    BrowserAnimationsModule,   
    FormsModule,
    HttpClientModule,
    NgbModule.forRoot(),      
    AppRoutingModule,        
  ],
  providers: [
      {
      provide: PERFECT_SCROLLBAR_CONFIG,
      useValue: DEFAULT_PERFECT_SCROLLBAR_CONFIG
    },{
    provide: LocationStrategy,
    useClass: HashLocationStrategy
  }],
  bootstrap: [AppComponent]
})
export class AppModule { }

我的app-routing.module.ts如下：

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
export const routes: Routes = [
{
    path: '',
    component: FullComponent,
    children: [
        { path: '', redirectTo: '/masterpage/location', pathMatch: 'full' },
        { path: 'masterpage', loadChildren: './masterpage/masterpage.module#MasterPageModule' }, 
    ]
}];
@NgModule({
    imports: [RouterModule.forRoot(routes), NgbModule.forRoot()],
    exports: [RouterModule]
})
export class AppRoutingModule { }

我的masterpage.module.ts代码如下：

import { NgModule,Component } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';
import { Routes, RouterModule } from '@angular/router';
import { LocationComponent } from './location/location.component';
import { StorageComponent } from './storage/storage.component';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { MasterPageRoutes } from './masterpage.routing';

@NgModule({
    imports: [
        FormsModule,
        CommonModule,
        NgbModule,
        RouterModule.forChild(MasterPageRoutes)
    ],
    declarations: [
        LocationComponent,
        StorageComponent,
    ]
})
export class MasterPageModule { }

我的 masterpage.routing.ts 代码如下：

import { Routes } from '@angular/router';
import { LocationComponent } from './location/location.component';
import { StorageComponent } from './storage/storage.component';

export const MasterPageRoutes: Routes = [
  {
    path: '',
    children: [
    {
      path: 'location',
      component: LocationComponent,
      data: {
        title: 'Location',
        urls: [{title: 'Location',url: '/location'},{title: 'Location'}]
      }
    }, {
      path: 'storage',
      component: StorageComponent,
      data: {
        title: 'Storage',
        urls: [{title: 'Storage',url: '/storage'},{title: 'Storage'}]
      }
    }
]
  }
];

我之前的示例运行 url '/localhost:4200/#/dashboard/dashboard1'-这是示例。我根据我的要求将仪表板从 'masterpage' 及其子项 'dashboard1' 和 'dashboard2' 分别更改为 'location' 和 'storage'。我希望子页面的位置和存储必须使用 url '/localhost:4200/#/masterpage/location' 加载但它不适合我。代码页中没有错误。我在控制台中仅在检查元素下发现的错误。

请帮我看看哪里出了问题.. 提前致谢。

Answer 1

由于您已经在 app.module.ts 中声明了 LocationComponent，它已经在应用程序范围内可用。所以，没必要再在masterpage.module.ts.

中声明

从声明数组中删除 LocationComponent masterpage.module.ts 并删除导入。

类型 "LocationComponent" 是 2 modules:Angular 6 的声明的一部分？

Type "LocationComponent" is part of the declarations of 2 modules:Angular 6?

routing

angular

angular5

angular6