Angular在使用指令时给出@ angular/core 404 not found错误

Question

当我将这行代码添加到我的@Component:

directives: [HeroDetailComponent]

代码中断,并给我这个错误:

GET http://localhost:3000/@angular/core 404 (Not Found)

这些是我的脚本index.html:

<script src="node_modules/es6-shim/es6-shim.min.js"></script>
<script src="node_modules/systemjs/dist/system-polyfills.js"></script>
<script src="node_modules/angular2/es6/dev/src/testing/shims_for_IE.js"></script>   

<script src="node_modules/angular2/bundles/angular2-polyfills.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<script src="node_modules/rxjs/bundles/Rx.js"></script>
<script src="node_modules/angular2/bundles/angular2.dev.js"></script>

如果我错过了诊断此问题的任何信息,请告诉我,我会将其包含在此处.

Answer 1

如果要使用RC版本的Angular2,则需要以这种方式配置SystemJS:

var packages = {
  'app': { main: 'main.js',  defaultExtension: 'js' },
  'rxjs': { defaultExtension: 'js' },
  'angular2-in-memory-web-api': { defaultExtension: 'js' },
};

var packageNames = [
  '@angular/common',
  '@angular/compiler',
  '@angular/core', // <--------
  '@angular/http',
  '@angular/platform-browser',
  '@angular/platform-browser-dynamic',
  '@angular/router',
  '@angular/router-deprecated',
  '@angular/testing',
  '@angular/upgrade',
];

packageNames.forEach(function(pkgName) {
  packages[pkgName] = { main: 'index.js', defaultExtension: 'js' };
});

var config = {
  map: map,
  packages: packages
}

System.config(config);

如果要使用beta版本,在将node_modules/angular2/bundles/angular2.dev.js文件包含在script元素中后,请导入此包:

import {Component, Directive, ...} from 'angular2/core';