trireme bluebird error

trireme_bluebird.js

var Promise = require("bluebird");
var rp = require("request-promise");
var xml2js = require("xml2js");
var xml2jsP = Promise.promisifyAll(require("xml2js"));

var xml2jsOptions = {
    explicitArray: false,
    valueProcessors: [xml2js.processors.parseNumbers, xml2js.processors.parseBooleans]
}

var serviceOptions = {
    url: "http://www.webservicex.net/stockquote.asmx/GetQuote?symbol=AAPL",
    method: "GET"
};


var firstResponse = rp(serviceOptions);
firstResponse.then(function (response1) {
    var parseString = xml2jsP.parseStringAsync;
    parseString(response1, xml2jsOptions).then(function (result1) {
        "use strict";
        console.log("Response from First Service = ", result1);


        var secondServiceOptions = {
            url: "http://www.webservicex.net/stockquote.asmx/GetQuote?symbol=MSFT",
            method: "GET"
        }
        var secondServiceResponse = rp(secondServiceOptions);
        secondServiceResponse.then(function (response2) {
            var parseString = xml2jsP.parseStringAsync;
            parseString(response2, xml2jsOptions).then(function (result2) {
                console.log("Response from Second Service = ", result2);
            }).catch(function(error) {
                console.log("Error = " + error.stack);
            });
        }).catch(function(error) {
            console.log("Error = " + error.stack);
        });
    }).catch(function(error) {
        console.log("Error = " + error.stack);
    });
}).catch(function(error) {
    console.log("Error = " + error.stack);
});