symfony - Symfony2 Event Listener not called - Adesign Calendar Bundle -

i've installed adesign calendar bundle , followed setup instructions documented here: https://github.com/adesigns/calendar-bundle

my issue in template trying display calendar generating empty div called #calendar-holder - no calendar inside it.

i'm not getting console errors, in symfony profiler i've found this:

not called listeners

event: calendar.load_events

listener: calendareventlistener::loadevents

i'm new symfony i'm not sure means - think have registered event listener correctly.

any advice appreciated!

thanks, tom

my code below:

services.yml

kernel.listener.calendar_listener:     class: frontendbundle\listener\calendareventlistener     tags:     - { name: kernel.event_listener, event: calendar.load_events, method: loadevents }     arguments: [@doctrine.orm.entity_manager, @service_container] 

event listener class - calendareventlistener.php

(i know class called can echo within - below method inside class not)

namespace frontendbundle\listener;  use adesigns\calendarbundle\event\calendarevent; use adesigns\calendarbundle\entity\evententity; use doctrine\orm\entitymanager;  class calendareventlistener { private $entitymanager;  public function __construct(entitymanager $entitymanager) {     $this->entitymanager = $entitymanager; }  public function loadevents(calendarevent $calendarevent) {      /* test data */     $begindatetime = new \datetime('2012-01-01 00:00:00');     $enddatetime = new \datetime('2012-05-01 00:00:00');     $eventtitle = "test title 1";      $evententity = new evententity($eventtitle, $begindatetime, null, true);      $calendarevent->addevent($evententity);  } } 

services:     kernel.listener.allotaxi_exception_listener:         class: frontendbundle\listener\calendareventlistener         arguments: [@templating, @kernel]         tags:         - { name: kernel.event_listener, event: kernel.exception, method: onkernelexception } 

try code service, indentation