Node.js Nodejs应用程序被困在express:dev任务中？

当运行grunt服务时，进程会被困在express:dev任务中 当mongod在跑步和表演的时候

> Running "express:dev" (express) task 
> Starting background Express server
> Debugger listening on port 5859

Mongod回应：

2016-12-24T19:50:20.085+0530 I NETWORK  [initandlisten] waiting for connections on port 27017
2016-12-24T19:50:36.539+0530 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:36894 #1 (1 connection now open)
2016-12-24T19:50:36.572+0530 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:36896 #2 (2 connections now open)

我的服务器app.js文件在此被删除，我不知道为什么grunt会执行进一步的任务。它是否与端口有关？请帮助

    [/**
 * Main application file
 */

'use strict';

// Set default node environment to development
process.env.NODE_ENV = process.env.NODE_ENV || 'development';

var express = require('express');
var mongoose = require('mongoose');
var config = require('./config/environment');

// Connect to database
mongoose.connect(config.mongo.uri, config.mongo.options);

// Populate DB with sample data
// if(config.seedDB) { require('./config/seed'); }

// Setup server
var app = express();
var server = require('http').createServer(app);
var socketio = require('socket.io')(server, {
  serveClient: (config.env === 'production') ? false : true,
  path: '/socket.io-client'
});
require('./config/socketio')(socketio);
require('./config/express')(app);
require('./routes')(app);


// Start server
server.listen(config.port, config.ip, function () {

  //console.log('Express server listening on %d, in %s mode', config.port, app.get('env'));
});

// Expose app
exports = module.exports = app;][1]

---

我的猜测是，它没有卡住，它只是在运行服务器，直到你停止它。是的，当我停止时，它停止了，但它没有启动应用程序的主页索引页