Question

我有一个Angular 2项目在2.3版本上运行得很好，但我想升级到2.4版，所以我在这里下载了最新的快速入门文件：https://github.com/angular/quickstart

然后我将tsconfig.json，package.json和systemjs.config.js文件替换为该快速启动项目中的文件。现在我突然得到了许多以下错误的意思：

构建：找不到名称'Set'

构建：找不到名字'承诺'

构建：找不到名称“地图”

为什么最新的Quickstart项目中的tsconfig.json，package.json和/或systemjs.config.js文件会导致这些错误？

我最近将我的TypeScript升级到2.1.4，并认为这可能是一个问题，所以我卸载它并返回到2.0.3。这可能是一个问题吗？

我确信有人会建议更改其中一个或两个文件中的代码，但我不应该，我应该吗？那些只是开箱即用吗？

以下是文件......

tsconfig.json：

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "lib": [ "es2015", "dom" ],
    "noImplicitAny": true,
    "suppressImplicitAnyIndexErrors": true
  }
}

的package.json：

{
  "name": "angular-quickstart",
  "version": "1.0.0",
  "description": "QuickStart package.json from the documentation, supplemented with testing support",
  "scripts": {
    "start": "tsc && concurrently \"tsc -w\" \"lite-server\" ",
    "e2e": "tsc && concurrently \"http-server -s\" \"protractor protractor.config.js\" --kill-others --success first",
    "lint": "tslint ./app/**/*.ts -t verbose",
    "lite": "lite-server",
    "pree2e": "webdriver-manager update",
    "test": "tsc && concurrently \"tsc -w\" \"karma start karma.conf.js\"",
    "test-once": "tsc && karma start karma.conf.js --single-run",
    "tsc": "tsc",
    "tsc:w": "tsc -w"
  },
  "keywords": [],
  "author": "",
  "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-in-memory-web-api": "~0.2.4",
    "systemjs": "0.19.40",
    "core-js": "^2.4.1",
    "rxjs": "5.0.1",
    "zone.js": "^0.7.4"
  },
  "devDependencies": {
    "concurrently": "^3.1.0",
    "lite-server": "^2.2.2",
    "typescript": "~2.0.3",

    "canonical-path": "0.0.2",
    "http-server": "^0.9.0",
    "tslint": "^3.15.1",
    "lodash": "^4.16.4",
    "jasmine-core": "~2.4.1",
    "karma": "^1.3.0",
    "karma-chrome-launcher": "^2.0.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~4.0.14",
    "rimraf": "^2.5.4",

    "@types/node": "^6.0.46",
    "@types/jasmine": "^2.5.36"
  },
  "repository": {}
}

systemjs.config.js：

(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',

            // 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);

编辑：我将这些文件更改回原来的版本，摆脱了错误，然后我用我下载的Quickstart文件创建了一个新项目，然后再次出现这些错误。这证明我的代码不是错误。 2.4版本有问题吗？其他人是否能够使用2.4版本的项目运行？

更新：我在Windows 10上使用Visual Studio 2015。

Answer 1

请尝试使用以下内容安装打字模块，看看是否有帮助：

      npm install -g typings
      typings install

Answer 2

原来这是一个愚蠢的错误。我的项目中有几个不同的Angular Apps，我忘了在其中一个中更改tsconfig.json文件。一旦我更新了另一个，构建错误就解决了。这可能只是被删除......

下载最新的Angular 2快速入门文件后生成错误

2 个答案: