从组件打开 Angular Bootstrap 模态

Question

I'm trying to set up a simple modal using angular bootstrap. But I'm running to this error :

 "ERROR Error: No component factory found for ModalContentComponent. Did you add it to @NgModule.entryComponents?
    at noComponentFactoryError"

I've imported the module but still unable to get this working. I've started with the documentation HERE and also looked at this StackOverflow question HERE .

Here is my app.module :

import { FormPoster } from './services/form-poster.service';
import { DatepickerModule } from 'ngx-bootstrap/datepicker';
import { ButtonsModule } from 'ngx-bootstrap/buttons';
import { RatingModule } from 'ngx-bootstrap/rating';
import { AddGameComponent } from './add-game/add-game.component';
import { ModalModule } from 'ngx-bootstrap';

@NgModule({
declarations: [
AppComponent,
EmployeeComponent,
EmployeeTitlePipe,
EmployeeListComponent,
EmployeeCountComponent,
HomeComponentComponent,
PageNotFoundComponent,
AddEmployeeComponent,
AddGameComponent,        
],

imports: [
 BrowserModule,
 BrowserAnimationsModule,
 FormsModule,
 HttpModule,
 ButtonsModule.forRoot(),
 RatingModule.forRoot(),
 ModalModule.forRoot(),
 DatepickerModule.forRoot(),
 RouterModule.forRoot(appRoutes)
 ],
 providers: [EmployeeService, FormPoster],
 bootstrap: [AppComponent]
 })
 export class AppModule { }

Answer 1

Add ModalContentComponent inside entryComponent in your module file.

Like following :

entryComponents: [
    ModalContentComponent
]

Answer 2

You should add your component to @NgModule and entryComponents

Step 1 : Import the component into the app.module.ts

import { CatalogDetailsComponent, ModalContentComponent } from './catalog-details/catalog-details.component'

Step 2 : Add imported module to @NgModule

@NgModule({
  declarations: [
    AppComponent,
    ModalContentComponent 
  ],

Step 3 : Add entryComponents below @NgModule if it is not there and add imported component there also

  entryComponents: [
    ModalContentComponent
  ],

Answer 3

将组件作为entryComponents AND 在declarations添加到模块中。