ios - Thread 1 : EXC_BAD_ACCESS (Code = 1, address = 0x0) issue generated -


i using paho mqtt (internet of things) mobilefirst 7.1 hybrid application development (for ios ,android , windows phone devices). tried 'broker.mqttdashboard.com' mqtt broker, not working ios .

error:

xcode console:

libc++abi.dylib: pure virtual function called!

main.js:

function wlcommoninit(){      mqttconnect(); //connect broker subscribe  }

mqttservice.js:

var host = 'broker.mqttdashboard.com'; var port = 8000; var topic = 'sensor';   // topic subscribe var usetls = false; var username = null; var password = null; // username = "nazmul"; // password = "kp0582!"; var cleansession = true;     var mqtt;     var reconnecttimeout = 2000;      function mqttconnect() {         mqtt = new paho.mqtt.client(                         host,                         port,                         "web_" + parseint(math.random() * 100,                         10));         var options = {             timeout: 3,             usessl: usetls,             cleansession: cleansession,             onsuccess: onconnect,             onfailure: function (message) {                 console.log("connection failed: " + message.errormessage + "retrying")                 settimeout(mqttconnect, reconnecttimeout);             }     };          mqtt.onconnectionlost = onconnectionlost;         mqtt.onmessagearrived = onmessagearrived;          if (username != null) {             options.username = username;             options.password = password;         }         console.log("host="+ host + ", port=" + port + " tls = " + usetls + " username=" + username + " password=" + password);         mqtt.connect(options);     };      function onconnect() {          console.log('connected ' + host + ':' + port)         // connection succeeded; subscribe our topic         mqtt.subscribe(topic, {qos: 0});      };      function onconnectionlost(response) {         settimeout(mqttconnect, reconnecttimeout);          console.log("connection lost: " + responseobject.errormessage + ". reconnecting")      };      function onmessagearrived(message) {          var topic = message.destinationname;         var payload = message.payloadstring;          console.log( topic + ' = ' + payload)         alert(topic + ' = ' + payload);      };

mobilefirst: version 7.1.0.00-20151114-1616

xcode: version 7.2 beta (7c46t)

iphone 6s plus

project uploaded here: https://github.com/nazmulkp/mqtt-mobilefirst-hybrid-application

thank you

int retval = uiapplicationmain(argc, argv, nil, nsstringfromclass([appdelegate class])); return retval;

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