问angular2 ng2-nvd3:无法加载模块

EN

map: {
      // our app is within the app folder
      app: 'app',
     ...
      // other libraries
      'ng2-nvd3':                   'npm:ng2-nvd3/lib/ng2-nvd3'      
    },

import { NgModule }      from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';

import {nvD3} from 'ng2-nvd3';

import { AppComponent }  from './app.component';
import { AppService }  from './app.service';

@NgModule({
  imports: [
    BrowserModule 
  ],
  declarations: [ 
    nvD3,
    AppComponent 
  ],
  bootstrap: [
    AppComponent 
  ]
})
export class AppModule { }

import { Component, OnInit } from '@angular/core';
declare let d3: any;
import {nvD3} from 'ng2-nvd3';

@Component({
    selector: 'my-app',
    moduleId: module.id,
    templateUrl: 'app.component.html'
})
export class AppComponent implements OnInit {
...
}

<script src="node_modules/d3/d3.min.js" charset="utf-8"></script>
    <link rel="stylesheet" href="node_modules/nvd3/build/nv.d3.min.css"/>
    <script src="node_modules/nvd3/build/nv.d3.min.js"></script>