Meteor up (mup) error

Meteor Up: Production Quality Meteor Deployments

Started TaskList: Setup (linux)
[] - Installing Node.js

throw er; // Unhandled ‘error’ event
Error: connect ECONNREFUSED
at errnoException (net.js:905:11)
at Object.afterConnect [as oncomplete] (net.js:896:19)

// Server authentication info
"servers": [
“host”: “”,
“username”: “root”,
“password”: “dhaval”
// or pem file (ssh based authentication)
//“pem”: “~/.ssh/id_rsa”

// Install MongoDB in the server, does not destroy local MongoDB on future setup
"setupMongo": true,

// WARNING: Node.js is required! Only skip if you already have Node.js installed on server.
“setupNode”: true,

// WARNING: If nodeVersion omitted will setup 0.10.36 by default. Do not use v, only version number.
“nodeVersion”: “0.10.36”,

// Install PhantomJS in the server
"setupPhantom": true,

// Show a progress bar during the upload of the bundle to the server.
// Might cause an error in some rare cases if set to true, for instance in Shippable CI
"enableUploadProgressBar": true,

// Application name (No spaces)
“appName”: “test”,

// Location of app (local directory)
“app”: “/var/www/html/meteor_app/test”,

// Configure environment
"env": {
“ROOT_URL”: “”,

// Meteor Up checks if the app comes online just after the deployment
// before mup checks that, it will wait for no. of seconds configured below
"deployCheckWaitTime": 15

still i am getting same error