Phantomjs not working

I’m working with Meteor 1.4.2.
I run meteor npm install --save phantomjs
and I’m trying to run the following code with no success. It hangs in an infinte:
“select: Invalid argument”

server/init.js

     url = <Dynamic URL>
     var Future = Npm.require( 'fibers/future' );
     var future = new Future();
     var phantomjs = require("phantomjs");
      var spawn = require('child_process').spawn;
      command = spawn(phantomjs.path, ['assets/app/driver.js' ,url]);
      var str_phantom_output="";
      command.stdout.on('data', function (data) {
        str_phantom_output += data.toString();
      });
      command.stderr.on('data', function (data) {
                console.log('stderr: ' + data);
      });
      command.on('exit', function (code) {        
        future.return(str_phantom_output);
      });
      future.wait();
      return future.value;

private/driver.js

var system = require('system');
var page = require('webpage').create();

page.open(system.args[1], function (status) {
  
    setTimeout(function(){
        evaluatePage();
        phantom.exit();
    },5000);

});

function evaluatePage(){
    var inputCount = page.evaluate(function(){
        return document.documentElement.outerHTML;
    });
}

When I run

meteor reset

before my test command, it does not occur. When I do not reset, I get the same error.