angular - Angular|Ionic 中“未找到 [自定义组件] 的组件工厂”

Question

我正在使用带有延迟加载页面的 Ionic 3。当尝试在页面内的组件内呈现模式时，出现以下错误:

No component factory found for CourseEditorComponent. Did you add it to @NgModule.entryComponents?

正如您在下面看到的，我已将 CourseEditorComponent 作为entryComponent 添加到courses.modules.ts 中，它由dashboard.modules.ts 导入。

我对 Angular/Ionic 中使用自定义 EntryComponents 的方式有什么错误吗？

层次结构

DashboardPage
-CoursesComponent
--CourseEditorComponent
--CourseCreatorComponent
-InstructorsComponent

模块

dashboard.module.ts

import { NgModule } from '@angular/core';
import { IonicPageModule } from 'ionic-angular';
import { DashboardPage } from './dashboard';
import { CoursesModule } from "./courses/courses.module";

@NgModule({
  declarations: [
    DashboardPage
  ],
  imports: [
    IonicPageModule.forChild(DashboardPage),
    CoursesModule
  ],
})
export class DashboardPageModule {}

course.module.ts

import { NgModule } from '@angular/core';
import { IonicPageModule } from 'ionic-angular';
import { CoursesComponent } from './courses';
import { CourseEditorComponent } from "./course-editor/course-editor";

@NgModule({
  declarations: [CoursesComponent],
  imports: [IonicPageModule.forChild(DashboardPage)],
  entryComponents: [CourseEditorComponent],
  exports: [CoursesComponent,CourseEditorComponent]
})
export class CoursesModule {}

类(class)组件

import { Component } from '@angular/core';
import { ModalController } from 'ionic-angular';
import { CourseEditorComponent } from "./course-editor/course-editor";

@Component({
  selector: 'courses',
  templateUrl: 'courses.html',
})
export class CoursesComponent {
  editCourse(data) {
    let editor = this.modal.create(CourseEditorComponent,{course: data});
    editor.present();
  }
}

Answer 1

@NgModule({
  imports:      [ BrowserModule, FormsModule ],
  declarations: [ AppComponent, HelloComponent ],
  bootstrap:    [ AppComponent ],
  entryComponents: [your modal component] // you need to add it to entry component
})
export class AppModule { }

到目前为止，尚不支持相同的内容，Angular git 存储库中报告了相同的问题 LINK

使用EntryComponentsModule

将 EntryComponentsModule(定义所有 EntryComponent 的位置)导入到 AppModule，直到问题得到解决。

使用CourseEditorComponent作为页面

将CourseEditorComponent变成页面，并将modal.create(CourseEditorComponent)更改为modal.create('CourseEditorComponent')