Javascript npm运行生成不工作，仅显示它'；s值

我已经为包构建发行版运行了“npm run build”命令，但它没有执行，只从package.json文件返回脚本值

C:\Project\jdpcmobile\u client\trunk>npm运行构建

零件-mobile@0.0.1构建C:\Project\jdpcmobile\u客户端\trunk

咕噜声

我的package.json文件是：-

{
  "name": "parts-mobile",
  "private": true,
  "version": "0.0.1",
  "description": "John Deere Parts Catalog Mobile",
  "devDependencies": {
    "express": "~4",
    "body-parser": "~1.14.2",
    "underscore": "~1.8",
    "bower": "~1.4",
    "grunt": "~0.4.5",
    "grunt-cli": "~0.1.13",
    "grunt-angular-gettext": "~2.1.0",
    "grunt-closure-compiler": "0.0.21",
    "load-grunt-tasks": "~3.2.0",
    "grunt-angular-templates": "~0.5.7",
    "grunt-contrib-copy": "~0.8.0",
    "grunt-contrib-clean": "~0.6.0",
    "grunt-contrib-cssmin": "~0.12.3",
    "grunt-jsdoc": "0.6.7",
    "angular-jsdoc": "0.3.3"
  },

  "scripts": {
    "postinstall": "bower install",
    "start": "node server/server.js",
    "start-dist": "node server/server.js dist",
    "translate-extract": "grunt translate-extract",
    "build": "grunt build",
    "docgen": "grunt docgen"
  }
}

那么，如何使“npm运行构建”成功执行，我们如何知道“npm运行构建”已成功执行

如有任何积极回应，将不胜感激

---

提前感谢：@Praveen

您可以尝试全局安装grunt，并测试

grunt build

是否有效。是的，我尝试过grunt build，它已成功执行，但如何知道npm run build已成功执行？以及如何全局安装grunt？要全局安装NPM软件包，请运行

NPM install grunt cli-g

。我已经运行了命令并得到以下响应：NPM ERR！解析json时发生注册表错误。在这之后，我运行了“npm运行构建”，但仍然超过了2行，那么如何执行它呢？