Angular 2.0.0 Metadata_resolver奇怪的行为

Question

我正在将我的应用程序从angular2 RC5与angular-webpack脚手架迁移到角度2 2.0.0,角度为cli beta 14.

我正在与这些错误作斗争:

未捕获错误:无法解析PublicInfoDao的所有参数:(？,？).CompileMetadataResolver.getDependenciesMetadata @ metadata_resolver.js:508CompileMetadataResolver.getTypeMetadata @ metadata_resolver.js:405(匿名函数)@ metadata_resolver.js:552CompileMetadataResolver.getProvidersMetadata @ metadata_resolver. JS:532CompileMetadataResolver.getNgModuleMetadata @ metadata_resolver.js:285RuntimeCompiler._compileComponents @ runtime_compiler.js:126RuntimeCompiler._compileModuleAndComponents @ runtime_compiler.js:64RuntimeCompiler.compileModuleAsync @ runtime_compiler.js:55PlatformRef _._ bootstrapModuleWithZone @ application_ref.js:303PlatformRef_.bootstrapModule @ application_ref.js: 285(匿名函数)@main.ts:13__webpack_require__ @ bootstrap db3609d ...:52(匿名函数)@.*$:7__webpack_require__ @ bootstrap db3609d ...:52webpackJsonpCallback @ bootstrap db3609d ...:23(匿名函数)@main.bundle.js: 1

和

metadata_resolver.js:278Uncaught错误:模块'AppModule'(匿名函数)@ metadata_resolver.js声明的意外值'AppComponent':278CompileMetadataResolver.getNgModuleMetadata @ metadata_resolver.js:265RuntimeCompiler._compileComponents @ runtime_compiler.js:126RuntimeCompiler._compileModuleAndComponents @ runtime_compiler. js:64RuntimeCompiler.compileModuleAsync @ runtime_compiler.js:55PlatformRef _._ bootstrapModuleWithZone @ application_ref.js:303PlatformRef_.bootstrapModule @ application_ref.js:285(匿名函数)@main.ts:13__webpack_require__ @ bootstrap db3609d ...:52(匿名函数)@.*$:7__webpack_require__ @ bootstrap db3609d ...:52webpackJsonpCallback @ bootstrap db3609d ...:23(匿名函数)@main.bundle.js:1 1:https: //github.com/preboot/angular2-webpack

如果我删除应用程序的几个组件,这是一个奇怪的行为原因.但是,如果我添加一个简单的组件,如:

@Component({
  selector: 'tl-result-item',
  templateUrl: "./resultitem.component.html",
  styleUrls: ["./resultitem.component.scss"]
})
export class ResultItemComponent {

  @Input()
  result:Result;

  constructor(){}
}

抛出第二个错误.如果我评论@Input()该应用程序的工作.有一些服务,如果我取消注释应用程序抛出相同的错误,如果我评论一些行错误消失.

我对这些错误感到疯狂.我认为它应该是一个外部问题.

任何的想法？

更新:

第一个错误可能与https://github.com/AngularClass/angular2-webpack-starter#frequently-asked-questions有关(第二个问题)我有几个问题需要迁移到angular 2.0.0 final.

UPDATE2:

@NgModule({
  providers: [
    MetaService,
    Title,
    HttpInterceptor,
    {provide: ConnectionBackend, useClass: XHRBackend},
    {provide: Http, useExisting: HttpInterceptor},
    {provide: Configuration, useClass: ConfigurationDevelopment}
  ],
  imports: [
    BrowserModule,
    HttpModule,
    FormsModule,
    ReactiveFormsModule,
    // APP_ROUTER_PROVIDERS
  ],
  declarations: [
    AppComponent,
    ResultItemComponent,

    TimestampToMomentPipe,
    TimestampToTimePipe
  ],
  bootstrap: [AppComponent]
})
export class AppModule {
}

Update3: 另一个在angular cli中失败的代码示例.

此代码正常工作:

this.publicService.all().subcribe(response => {
      console.log(response);
});

此代码失败:

this.publicService.all().subcribe(response => {
      deserialize(response)
});

以上解释的例外情况:

未捕获错误:无法解析PublicInfoDao的所有参数:(？,？).

¿¿？

Answer 1

环境.ts

// Angular 2
// rc2 workaround
import { enableDebugTools, disableDebugTools } from '@angular/platform-browser';
import { enableProdMode, ApplicationRef } from '@angular/core';
// Environment Providers
let PROVIDERS: any[] = [
  // common env directives
];

// Angular debug tools in the dev console
// https://github.com/angular/angular/blob/86405345b781a9dc2438c0fbe3e9409245647019/TOOLS_JS.md
let _decorateModuleRef = function identity<T>(value: T): T { return value; };

if ('production' === ENV) {
  // Production
  disableDebugTools();
  enableProdMode();

  PROVIDERS = [
    ...PROVIDERS,
    // custom providers in production
  ];

} else {

  _decorateModuleRef = (modRef: any) => {
    const appRef = modRef.injector.get(ApplicationRef);
    const cmpRef = appRef.components[0];

    let _ng = (<any>window).ng;
    enableDebugTools(cmpRef);
    (<any>window).ng.probe = _ng.probe;
    (<any>window).ng.coreTokens = _ng.coreTokens;
    return modRef;
  };

  // Development
  PROVIDERS = [
    ...PROVIDERS,
    // custom providers in development
  ];

}

export const decorateModuleRef = _decorateModuleRef;

export const ENV_PROVIDERS = [
  ...PROVIDERS
];

应用程序模块.ts

@NgModule({
  providers: [
 // expose our Services and Providers into Angular"s dependency injection
        ENV_PROVIDERS
  ],
  imports: [
    BrowserModule,
    HttpModule,
    FormsModule,
    ReactiveFormsModule,
    // APP_ROUTER_PROVIDERS
  ],
  declarations: [
    AppComponent,
    ResultItemComponent,

    TimestampToMomentPipe,
    TimestampToTimePipe
  ],
  bootstrap: [AppComponent]
})
export class AppModule {
}