Question

我正在尝试完成Angular之旅英雄教程的HTTP部分。

https://angular.io/docs/ts/latest/tutorial/toh-pt6.html

将app.module.ts从v1更改为v2后，应用程序不再加载，我在控制台中收到以下错误：

仪表板：16错误：（SystemJS）ctorParameters.map不是函数 TypeError：ctorParameters.map不是函数在ReflectionCapabilities.parameters（http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1780:49）在Reflector.parameters（http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1922:48）在CompileMetadataResolver.getDependenciesMetadata（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14534:56）在CompileMetadataResolver.getTypeMetadata（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14499:28）在CompileMetadataResolver.getNgModuleMetadata（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14403:30）在eval（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14324:52） at Array.forEach（native）在CompileMetadataResolver.getNgModuleMetadata（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14311:46）在RuntimeCompiler._compileComponents（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:17063:49） at RuntimeCompiler._compileModuleAndComponents（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:17001:39）评估http://localhost:3000/app/main.js 加载http://localhost:3000/app/main.js时出错在ReflectionCapabilities.parameters（http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1780:49）在Reflector.parameters（http://localhost:3000/node_modules/@angular/core/bundles/core.umd.js:1922:48）在CompileMetadataResolver.getDependenciesMetadata（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14534:56）在CompileMetadataResolver.getTypeMetadata（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14499:28）在CompileMetadataResolver.getNgModuleMetadata（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14403:30）在eval（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14324:52） at Array.forEach（native）在CompileMetadataResolver.getNgModuleMetadata（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:14311:46）在RuntimeCompiler._compileComponents（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:17063:49） at RuntimeCompiler._compileModuleAndComponents（http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:17001:39）评估http://localhost:3000/app/main.js 加载http://localhost:3000/app/main.js
时出错

文件之间的唯一区别是以下几行：

import { InMemoryWebApiModule } from 'angular-in-memory-web-api';
import { InMemoryDataService }  from './in-memory-data.service';

我找到了一些答案，这些答案都归咎于内存中的角度网络API，但却有不同的错误和旧版本。因此，基于这些答案，我认为以下两个文件可能提供线索。

这是我的package.json：

{
  "name": "angular-quickstart",
  "version": "1.0.0",
  "scripts": {
    "start": "npm run lite",
    "lite": "lite-server"
  },
  "license": "MIT",
  "dependencies": {
    "@angular/common": "~2.4.0",
    "@angular/compiler": "~2.4.0",
    "@angular/core": "~2.4.0",
    "@angular/forms": "~2.4.0",
    "@angular/http": "~2.4.0",
    "@angular/platform-browser": "~2.4.0",
    "@angular/platform-browser-dynamic": "~2.4.0",
    "@angular/router": "~3.4.0",
    "@angular/upgrade": "~2.4.0",

    "angular-in-memory-web-api": "~0.1.16",
    "core-js": "^2.4.1",
    "reflect-metadata": "^0.1.8",
    "rxjs": "5.0.1",
    "zone.js": "^0.7.4"
  },
  "devDependencies": {
    "concurrently": "^3.0.0",
    "lite-server": "^2.2.2"
  }
}

和我的systemjs.config.js

/**
 * System configuration for Angular samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
  System.config({
    paths: {
      // paths serve as alias
      'npm:': 'node_modules/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: 'app',
      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
      // other libraries
      'rxjs':                      'npm:rxjs',
      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js'
    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.js',
        defaultExtension: 'js'
      },
      rxjs: {
        defaultExtension: 'js'
      }
    }
  });
})(this);

我很确定它与angular-in-memory-web-api有关，它会成为某种配置问题。三江源。

Angular 2 Tour of Heroes HTTP ctorParameters.map不是函数

0 个答案: