Angular cli 2 Error Can't resolve all parameters for XXXXX by AOT build

Question

            import { Injectable, Inject } from '@angular/core';
            import { Subject } from "rxjs/Subject";
            import { CompleterData, CompleterItem } from 'ng2-completer';
            import { ProgramService } from '../program.service';
            import { asEnumerable } from 'linq-es5';
            import { CacheService } from '../../../core/services/cache.service';

            @Injectable()
            export class ProgramIntelligentSearch extends Subject<CompleterItem[]> implements CompleterData {
                constructor(private programService: ProgramService,
                    private cacheService: CacheService,
                    @Inject(Array) private lessonTypes: Array<any>,
                    @Inject(Array) private programTypes: Array<any>,
                    @Inject(Array) private languages: Array<any>
                    ) {
                    super();
                }
      --------------------------------------------------------------------------  
        import { Observable } from "rxjs/Observable";
        import { CompleterItem } from "../components/completer-item";
        export interface CompleterData extends Observable<CompleterItem[]> {
            search(term: string): void;
            cancel(): void;
            convertToItem?(data: any): CompleterItem;
        }
------------------------------------------------------------------
            Use ng build --prod --aot

错误无法解析 D:/Git/xxxxxxx/Application/Htm l5/src/app/shared/service/search/program-intelligent-search.ts: ([object Object], [object Object], ?, ?, ?) 中 ProgramIntelligentSearch 的所有参数

./src/main.ts 中的错误 找不到模块：错误：无法解析 'D:\Git\cosmos-main-html5\App 中的 './$$_gendir/app/app.module.ngfactory' lication\Html5\src' @ ./src/main.ts 4:0-74 @multi ./src/main.ts

Answer 1

您必须添加@Inject 以便解决它的依赖关系。

因此，对于服务中的自定义服务，使用 @Inject 注入其依赖项

在您的代码中，将您的自定义服务替换为

@Inject(ProgramService) private programService: ProgramService, @Inject(CacheService) private cacheService: CacheService,

您可以从这个博客中深入了解它。 https://blog.thoughtram.io/angular/2015/09/17/resolve-service-dependencies-in-angular-2.html