没有组件工厂发现离子2 r0错误

Question

我正在尝试在ionic2中进行测试。

我的一个页面有自定义标签作为peg的更改日志，我试图更新我的自定义标签和页面按照第7点解释

导入并添加每个自定义组件和管道到src/app/app.module.ts中的declarations数组中。

我已经移动了我的componentTags。ts文件到src，看看我的@NgModel

@NgModule({
  declarations: [
    MyApp,
    LoginPage,
    HomePage,
    AboutUsPage,
    PrivacyPolicyPage,
    TermsOfUsePage,
    ProductSubCategoryPage,
    CategoryProductDetailsPage,
    CategoryProductDetailsInfoPage,
    //custom tags
    QuantityComponent
  ],
  imports: [
    IonicModule.forRoot(MyApp)
  ],
  bootstrap: [IonicApp],
  entryComponents: [
    MyApp,
    LoginPage,
    HomePage,
    AboutUsPage,
    PrivacyPolicyPage,
    TermsOfUsePage,
    ProductSubCategoryPage,
    CategoryProductDetailsPage,
    CategoryProductDetailsInfoPage,
    QuantityComponent
  ],
  //directives: [QuantityComponent],
  providers: [
    Products,
    Users,
    Configurator,
    Rest
  ]

所以这是我的自定义组件文件称为quantityTag。ts文件

import {Component, Input, Output, EventEmitter} from '@angular/core';
@Component({
    selector: 'counter',
    
    styles: [`
        .quantity-input {
            display:flex; align-items:center;
        }
        .quantity-input .input-width {
            width:50px;
            border: 1px solid #bdbdbd;
            padding-top: 5px;
            
        }
        
        ion-icon{
            margin-left:0px;
            height:20px;
            padding-top: 3px;
            margin-top: 5px;
            color:#64c8dc;
            
        }
        button{
            background-color:SteelBlue;
        margin-left: 0px;
        }
    `],
    
    template: `
        <span class="quantity-input" style="">
            <input type="text" [(ngModel)]="counterValue" class="input-width"/> 
            <button small (click)="submit($event)"><ion-icon name="refresh"></ion-icon></button>
        </span>
    `
})
export class QuantityComponent {
    
    @Input() counterValue = 0;
    @Input() cookie = null;
    @Output() counterChange = new EventEmitter();
    submit(evt){
        this.counterChange.emit({
          value: this.counterValue,
          cookie: this.cookie
        });
    }

}

我有一个叫购物车的页面。这是因为我需要这个自定义标签，但我得到的错误如下

异常:./HomePage类首页-内联模板:18:27中出现错误，原因是:没有找到ShopingcartPage的组件工厂

ORIGINAL EXCEPTION: No component factory found for ShopingcartPage

Answer 1

尝试在@NgModules中添加你的页面

app.module.ts:

import { NgModule } from '@angular/core';
import { IonicApp, IonicModule } from 'ionic-angular';
import { MyApp } from './app.component';
import { AboutPage } from '../pages/about/about';
import { ContactPage } from '../pages/contact/contact';
import { HomePage } from '../pages/home/home';
import { TabsPage } from '../pages/tabs/tabs';
import { LoginPage } from '../pages/loginpage/login-page'
@NgModule({
  declarations: [
    MyApp,
    AboutPage,
    ContactPage,
    HomePage,
    TabsPage,
    LoginPage
  ],
  imports: [
    IonicModule.forRoot(MyApp)
  ],
  bootstrap: [IonicApp],
  entryComponents: [
    MyApp,
    AboutPage,
    ContactPage,
    HomePage,
    TabsPage,
    LoginPage
  ],
  providers: []
})
export class AppModule {}

https://github.com/angular/angular/issues/11030