angular.js - angular2 rc5 No component factory found for someComponent

浏览:33日期:2023-01-04

问题描述

当我将angular2 从rc4更新到rc5,之前的动态创建组件无法正常工作,原因可能是因为动态创建的组件中用到一个service,而这个service无法获得,但没有找到具体的解决办法,谁能帮忙看看,下面是代码I update angular2 to rc5,service can’t share when dynamic create SharedComponent,below is error:

NoComponentFactoryError {message: 'No component factory found for SharedComponent', stack: 'Error: No component factory found for FormComponen…tron/output/electron/build/polyfills.js:16347:22)'}component:SharedComponent(shareService)arguments:[Exception: TypeError: ’caller’ and ’arguments’ are restricted function properties and cannot be accessed in this context. at Function.remoteFunction (<anonymous>:3:14)]caller:[Exception: TypeError: ’caller’ and ’arguments’ are restricted function properties and cannot be accessed in this context. at Function.remoteFunction (<anonymous>:3:14)]length:1name:'SharedComponent'

below is my code----SharedComponent---

@Component({ template: require(’./share.component.html’), styles: [require(’./share.component.css’)]})export class SharedComponent implements OnInit { constructor(@Optional() private shareService:ShareService) { ...... }}

---shared.module.ts-------

@NgModule({ imports: [CommonModule, FormsModule], declarations: [SharedComponent], exports: [CommonModule, FormsModule, SharedComponent]})export class SharedModule { static forRoot(): ModuleWithProviders { return { ngModule: SharedModule }; }

---A.module.ts---------

@NgModule({ imports: [ sharedModule.forRoot() ], declarations: [ AComponent ], providers:[FormService]})export class AModule { }

-----A.component.ts------

@Component({ template: require(’./a.component.html’), styles: [require(’./a.component.css’)], providers: [ShareService]})export class UserComponent implements OnInit { @ViewChild(’body’, { read: ViewContainerRef }) bodyContainerRef: ViewContainerRef; constructor(private compiler: ComponentFactoryResolver,private shareService: ShareService) { } ngOnInit() { //Dynamic create SharedComponent let componentFactory = this.compiler.resolveComponentFactory(SharedComponent); this.bodyContainerRef.createComponent(componentFactory); }}

问题解答

回答1:

A.module.ts

@NgModule({ imports: [ sharedModule.forRoot() ], declarations: [ AComponent ], entryComponents: [ SharedComponent ] providers:[FormService]})export class AModule { }

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