问离子3模块声明错误

EN

运行下面的命令工作：ionic cordova build ios

但是运行以下命令

ionic cordova build ios --prod

结果出现以下错误

错误: /Users/jobstore/jobstore/js/src/components/expandable-header/expandable-header.ts中的ExpandableHeaderComponent类型是两个模块声明的一部分: /Users/jobstore/jobstore/js/src/components/shared-module/shared-module.ts中的SharedModuleComponent和/Users/jobstore/jobstore/js/src/components/expandable-header/expandable-header.module.ts！中的ExpandableHeaderComponentModule请考虑将/Users/jobstore/jobstore/js/src/components/expandable-header/expandable-header.ts中的ExpandableHeaderComponent移到在/Users/jobstore/jobstore/js/src/components/shared-module/shared-module.ts中导入SharedModuleComponent并在/Users/jobstore/jobstore/js/src/components/expandable-header/expandable-header.module.ts.中导入ExpandableHeaderComponentModule的更高模块您还可以在/Users/jobstore/jobstore/js/src/components/expandable-header/expandable-header.ts中创建导出和包含ExpandableHeaderComponent的新NgModule，然后在/Users/jobstore/jobstore/js/src/components/shared-module/shared-module.ts中的SharedModuleComponent中导入NgModule，在/Users/jobstore/jobstore/js/src/components/expandable-header/expandable-header.module.ts.中导入ExpandableHeaderComponentModule

我尝试创建一个共享模块：

import { Component ,NgModule} from '@angular/core';
import {ExpandableHeaderComponent} from '../expandable-header/expandable-header';
import {ShrinkHeaderComponent} from '../shrink-header/shrink-header';


@Component({
    selector: 'shared-module',
    templateUrl: 'shared-module.html'
})



@NgModule({
    declarations: [
    ExpandableHeaderComponent,
    ShrinkHeaderComponent

    ],

    exports: [
    ExpandableHeaderComponent,
    ShrinkHeaderComponent
    ]

})

export class SharedModuleComponent {

    constructor() {
    }

}

并在app.module.ts中导入

这里

  import { SharedModuleComponent } from '../components/shared-module/shared-module';

还有这里

      imports: [
     BrowserModule,
     HttpModule,
   SharedModuleComponent,
     ],

但我仍然面临着同样的问题。