项目角度：命令 npm 启动错误

Question

当我尝试使用以下命令在 cmd.exe 中启动我的 angular 2 项目时：npm start 我收到以下错误消息：

npm 错误！ Windows_NT 10.0.15063

npm 错误！ argv "D:\NodeJs\node.exe" "D:\NodeJs\node_modules\npm\bin\npm-cli.js" "开始"

npm 错误！节点 v6.11.2

npm 错误！ npm v3.10.10

npm 错误！代码生命周期

npm 错误！ angular-quickstart@1.0.0 预启动：npm run build

npm 错误！退出状态 1

npm 错误！

npm 错误！在 angular-quickstart@1.0.0 预启动脚本“npm”中失败 运行构建'。

npm 错误！确保您拥有最新版本的 node.js 和 npm 已安装。

npm 错误！如果你这样做，这很可能是一个问题 角度快速入门包，

npm 错误！不是 npm 本身。

npm 错误！告诉作者这在您的系统上失败了：

npm 错误！ npm 运行构建

npm 错误！您可以获得有关如何为此打开问题的信息 项目：

npm 错误！ npm bugs angular-quickstart

npm 错误！或者，如果这不可用，您可以通过以下方式获取他们的信息：

npm 错误！ npm owner ls angular-quickstart

npm 错误！上面可能还有额外的日志输出。

npm 错误！请在任何支持请求中包含以下文件：

npm 错误！ D:\Angular 2\bon\npm-debug.log"

还有我的 package.json ：" "

name": "angular-quickstart",
  "version": "1.0.0",
  "description": "QuickStart package.json from the documentation, supplemented with testing support",
  "scripts": {
    "build": "tsc -p src/",
    "build:watch": "tsc -p src/ -w",
    "build:e2e": "tsc -p e2e/",
    "serve": "lite-server -c=bs-config.json",
    "serve:e2e": "lite-server -c=bs-config.e2e.json",
    "prestart": "npm run build",
    "start": "concurrently \"npm run build:watch\" \"npm run serve\"",
    "pree2e": "npm run build:e2e",
    "e2e": "concurrently \"npm run serve:e2e\" \"npm run protractor\" --kill-others --success first",
    "preprotractor": "webdriver-manager update",
    "protractor": "protractor protractor.config.js",
    "pretest": "npm run build",
    "test": "concurrently \"npm run build:watch\" \"karma start karma.conf.js\"",
    "pretest:once": "npm run build",
    "test:once": "karma start karma.conf.js --single-run",
    "lint": "tslint ./src/**/*.ts -t verbose"
  },
  "keywords": [],
  "author": "",
  "license": "MIT",
  "dependencies": {
    "@angular/common": "~4.3.4",
    "@angular/compiler": "~4.3.4",
    "@angular/core": "~4.3.4",
    "@angular/forms": "~4.3.4",
    "@angular/http": "~4.3.4",
    "@angular/platform-browser": "~4.3.4",
    "@angular/platform-browser-dynamic": "~4.3.4",
    "@angular/router": "~4.3.4",

    "angular-in-memory-web-api": "~0.3.0",
    "systemjs": "0.19.40",
    "core-js": "^2.4.1",
    "rxjs": "5.0.1",
    "zone.js": "^0.8.4"
  },
  "devDependencies": {
    "concurrently": "^3.2.0",
    "lite-server": "^2.2.2",
    "typescript": "~2.1.0",

    "canonical-path": "0.0.2",
    "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": {}
}
"

不知道是什么问题……

Answer 1

检查 package.json 中的启动脚本

"scripts": { "start": "ng serve" }

或者直接使用 ng服务--o