# Undefined property

**URL:** <https://community.icinga.com/t/undefined-property/8677>\
**Category:** Icinga Director\
**Created:** [November 16, 2021, 3:44pm UTC](https://community.icinga.com/t/undefined-property/8677 "2021-11-16T15:44:03Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![TimK](https://community.icinga.com/letter_avatar_proxy/v4/letter/t/da6949/32.png) [@TimK](https://community.icinga.com/u/TimK)\
**Post date:** [November 16, 2021, 3:44pm UTC](https://community.icinga.com/t/undefined-property/8677/1 "2021-11-16T15:44:03Z")

</div>

Hi guys,  
i installed my first Icinga2 Installation but i have a problem with the Icinga Director.  
When i open the Director i receive this error:

Undefined property: Icinga\Module\Director\Controllers\IndexController::$window

#0 /usr/share/icingaweb2/modules/director/library/Director/Web/Controller/ActionController.php(78): Icinga\Application\ApplicationBootstrap-\>Icinga\Application{closure}(8, ‘Undefined prope…’, ‘/usr/share/icin…’, 78, Array)  
#1 /usr/share/icingaweb2/modules/director/library/Director/Web/Controller/Extension/DirectorDb.php(130): Icinga\Module\Director\Web\Controller\ActionController-\>Window()  
#2 /usr/share/icingaweb2/modules/director/library/Director/Web/Controller/Extension/DirectorDb.php(49): Icinga\Module\Director\Web\Controller\ActionController-\>getWindowSessionValue(‘db\_resource’)  
#3 /usr/share/icingaweb2/modules/director/application/controllers/IndexController.php(63): Icinga\Module\Director\Web\Controller\ActionController-\>getPreferredDbResourceName()  
#4 /usr/share/icingaweb2/modules/director/application/controllers/IndexController.php(56): Icinga\Module\Director\Controllers\IndexController-\>showKickstartForm()  
#5 /usr/share/icingaweb2/library/vendor/Zend/Controller/Action.php(507): Icinga\Module\Director\Controllers\IndexController-\>indexAction()  
#6 /usr/share/php/Icinga/Web/Controller/Dispatcher.php(76): Zend\_Controller\_Action-\>dispatch(‘indexAction’)  
#7 /usr/share/icingaweb2/library/vendor/Zend/Controller/Front.php(937): Icinga\Web\Controller\Dispatcher-\>dispatch(Object(Icinga\Web\Request), Object(Icinga\Web\Response))  
#8 /usr/share/php/Icinga/Application/Web.php(389): Zend\_Controller\_Front-\>dispatch(Object(Icinga\Web\Request), Object(Icinga\Web\Response))  
#9 /usr/share/php/Icinga/Application/webrouter.php(109): Icinga\Application\Web-\>dispatch()  
#10 /usr/share/icingaweb2/public/index.php(4): require\_once(’/usr/share/php/…’)  
#11 {main}

Incubator: 0.8.0  
reactbundle: 0.7.0  
ipl: 0.5.0

- Director version (System - About): 1.8.1
- Icinga Web 2 version and modules (System - About): 2.4.1
- Icinga 2 version (`icinga2 --version`): 2.4.1
- Operating System and version: Ubuntu 20.4 TLS
- Webserver, PHP versions: Apache 2.4.29

The search has unfortunately brought me no further, what have I done wrong?

Regards Tim

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<div class="post-metadata">

**Author:** ![steaksauce](https://community.icinga.com/user_avatar/community.icinga.com/steaksauce/32/1831_2.png) [@steaksauce](https://community.icinga.com/u/steaksauce)\
**Post date:** [November 16, 2021, 5:11pm UTC](https://community.icinga.com/t/undefined-property/8677/2 "2021-11-16T17:11:48Z")

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Looks like an outdated version of `ipl` at a glance. Can you remove `ipl` and reinstall from the [new ipl repo](https://github.com/Icinga/icinga-php-library)?

Try `stable/0.7.0`