Comment # 1 on bug 1172228 from Jurriaan Saathof

This is indeed plain stupid. I have installed the packages of version 2.8 that
are in the server:monitoring repository on OBS. See 

http://download.opensuse.org/repositories/server:/monitoring/openSUSE_Leap_15.2/

No need for checking out Icingaweb2 git repo.

This is the actual error in the apache2 log:
---
Jul 08 07:52:14 internet icingaweb2[1695]: ErrorException in
/usr/share/php/Icinga/Web/View.php:262 with message: include():
\Icinga\Web\ViewStream::stream_set_option is not implemented!
    #0 /usr/share/php/Icinga/Web/View.php(262):
Icinga\Application\ApplicationBootstrap->Icinga\Application\{closure}(Integer,
String, String, Integer, Array)
    #1 /usr/share/php/Icinga/Web/View.php(262): include()
    #2 /usr/share/icingaweb2/library/vendor/Zend/View/Abstract.php(877):
Icinga\Web\View->_run(String)
    #3
/usr/share/icingaweb2/library/vendor/Zend/Controller/Action/Helper/ViewRenderer.php(904):
Zend_View_Abstract->render(NULL)
    #4
/usr/share/icingaweb2/library/vendor/Zend/Controller/Action/Helper/ViewRenderer.php(925):
Zend_Controller_Action_Helper_ViewRenderer->renderScript(String, NULL)
    #5
/usr/share/icingaweb2/library/vendor/Zend/Controller/Action/Helper/ViewRenderer.php(964):
Zend_Controller_Action_Helper_ViewRenderer->render()
    #6
/usr/share/icingaweb2/library/vendor/Zend/Controller/Action/HelperBroker.php(272):
Zend_Controller_Action_Helper_ViewRenderer->postDispatch()
    #7 /usr/share/icingaweb2/library/vendor/Zend/Controller/Action.php(518):
Zend_Controller_Action_HelperBroker->notifyPostDispatch()
    #8 /usr/share/php/Icinga/Web/Controller/Dispatcher.php(76):
Zend_Controller_Action->dispatch(String)
    #9 /usr/share/icingaweb2/library/vendor/Zend/Controller/Front.php(937):
Icinga\Web\Controller\Dispatcher->dispatch(Object(Icinga\Web\Request),
Object(Icinga\Web\Response))
    #10 /usr/share/php/Icinga/Application/Web.php(300):
Zend_Controller_Front->dispatch(Object(Icinga\Web\Request),
Object(Icinga\Web\Response))
    #11 /usr/share/php/Icinga/Application/webrouter.php(99):
Icinga\Application\Web->dispatch()
    #12 /usr/share/icingaweb2/public/index.php(4): require_once(String)
    #13 {main}