Cannot signin to QuickBlox in Android -

i new quickblox. after going through tutorial have done following signup new user quickblox. problem getting following errors:

 1. {"errors":["token required"]}  2. status : 201  

i referred following question register user quickblox users android didn't help.

my codes:

public class mainactivity extends actionbaractivity implements onclicklistener { button sign_up;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     qbsettings.getinstance().fastconfiginit("xxxxx", "xxxxxx",             "xxxxxx");     sign_up = (button) findviewbyid(r.id.sign_up);     sign_up.setonclicklistener(mainactivity.this);  }  @override public boolean oncreateoptionsmenu(menu menu) {     // inflate menu; adds items action bar if present.     getmenuinflater().inflate(r.menu.main, menu);     return true; }  @override public boolean onoptionsitemselected(menuitem item) {     // handle action bar item clicks here. action bar     // automatically handle clicks on home/up button, long     // specify parent activity in androidmanifest.xml.     int id = item.getitemid();     if (id == r.id.action_settings) {         return true;     }     return super.onoptionsitemselected(item); }  @override public void onclick(view v) {     // todo auto-generated method stub     switch (v.getid()) {     case r.id.sign_up:         qbauth.createsession(new qbentitycallback<qbsession>() {              @override             public void onerror(list<string> arg0) {                 // todo auto-generated method stub              }              @override             public void onsuccess() {                 // todo auto-generated method stub                 final qbuser user = new qbuser("user1", "123456789");                 user.setexternalid("45345");                  user.setfullname("user1");                 user.setphone("123456789");                  qbusers.signup(user, new qbentitycallbackimpl<qbuser>() {                     @override                     public void onsuccess(qbuser user, bundle args) {                      }                      @override                     public void onerror(list<string> errors) {                      }                 });             }              @override             public void onsuccess(qbsession arg0, bundle arg1) {                 // todo auto-generated method stub              }         });          break;      default:         break;     }  } } 

where did error? it's not clear code example

also right way create user inside callback:

@override public void onsuccess(qbsession arg0, bundle arg1) 

not

@override public void onsuccess()