仅在ng build --prod中的main.ts文件中找不到模块错误

Question

Angular2在执行ng build --prod时出现以下错误，应用程序在本地运行良好。我不知道为什么会发生此错误，main.ts中的哪一行有问题。 这是main.ts文件。

import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

import { AppModule } from './app/app.module';
import { environment } from './environments/environment';


if (environment.production) {
  enableProdMode();
}

platformBrowserDynamic().bootstrapModule(AppModule);

这是路线：

import { NgModule /* ModuleWithProviders */ } from '@angular/core';
import { Routes, RouterModule, /* PreloadAllModules */ } from '@angular/router';
import { ProductComponent } from './products/dashboardPerformance/basic/basic.component';
import { OrderComponent } from './products/dashboardPerformance/advanced/advanced.component';

const appRoutes: Routes = [

    {path:'Product',component:ProductComponent},
    {path:'order',component:OrderComponent}
];

@NgModule({
    imports: [
        RouterModule.forRoot(appRoutes, { /* preloadingStrategy: PreloadAllModules */ })
    ],
    exports: [
        RouterModule
    ]
})
export class AppRouting {
}

角度版本：

   "devDependencies": {
        "@angular/cli": "1.0.1",
        "@angular/compiler-cli": "4.0.3",
      "ts-node": "3.0.2",
        "tslint": "^5.1.0",
        "typescript": "2.2.2"

},
"dependencies": {
    "@angular/animations": "4.0.3",
    "@angular/common": "4.0.3",
    "@angular/compiler": "4.0.3",
    "@angular/core": "4.0.3",
    "@angular/flex-layout": "2.0.0-beta.7",
    "@angular/forms": "4.0.3",
    "@angular/http": "4.0.3",
    "@angular/material": "2.0.0-beta.4",
    "@angular/platform-browser": "4.0.3",
    "@angular/platform-browser-dynamic": "4.0.3",
    "@angular/platform-server": "4.0.3",
    "@angular/router": "4.0.3",

角cli版本