# How to debug "ProvidedHook\\Grapher" not found in /usr/share/icingaweb2"

**URL:** <https://community.icinga.com/t/how-to-debug-providedhook-grapher-not-found-in-usr-share-icingaweb2/11713>\
**Category:** Visualization, Metrics & Reporting\
**Tags:** grafana\
**Created:** [March 30, 2023, 7:52am UTC](https://community.icinga.com/t/how-to-debug-providedhook-grapher-not-found-in-usr-share-icingaweb2/11713 "2023-03-30T07:52:08Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Assar-Westman](https://community.icinga.com/user_avatar/community.icinga.com/assar-westman/32/6602_2.png) [@Assar-Westman](https://community.icinga.com/u/Assar-Westman)\
**Post date:** [March 30, 2023, 7:52am UTC](https://community.icinga.com/t/how-to-debug-providedhook-grapher-not-found-in-usr-share-icingaweb2/11713/1 "2023-03-30T07:52:08Z")

</div>

Hi  
My icinga setup is on a Ubuntu host

- icinga web2 version 2.11.4
- Grafana module 2.0.1
- Grafana running on the same host v9.4.7 with influxdb v 1.6.4
- PHP version 8.2.4

I have followed the grafana module configuration as seen on Mikesch-mp github page. Initially I was able to visualize a grafana plot in icinga, but suddenly I lost my plots when trying to add more plots. I have tried to remove the whole grafana module and re-install it again following the documentation but without any luck.  
When looking in

> /var/log/syslog

I see this error message in syslog

```auto
Mar 30 08:31:34 curiosumunix icingaweb2[1132797]: ErrorException in /usr/share/icingaweb2/modules/grafana/application/controllers/DashboardController.php:47 with message: Uncaught Error: Class "Icinga\Module\Grafana\ProvidedHook\Grapher" not found in /usr/share/icingaweb2/modules/grafana/application/controllers/DashboardController.php:47 Stack trace: #0 /usr/share/icingaweb2/library/vendor/Zend/Controller/Action.php(507): Icinga\Module\Grafana\Controllers\DashboardController->indexAction() #1 /usr/share/php/Icinga/Web/Controller/Dispatcher.php(76): Zend_Controller_Action->dispatch() #2 /usr/share/icingaweb2/library/vendor/Zend/Controller/Front.php(937): Icinga\Web\Controller\Dispatcher->dispatch() #3 /usr/share/php/Icinga/Application/Web.php(290): Zend_Controller_Front->dispatch() #4 /usr/share/php/Icinga/Application/webrouter.php(105): Icinga\Application\Web->dispatch() #5 /usr/share/icingaweb2/public/index.php(4): require_once('...') #6 {main} thrown #0 [internal function]: Icinga\Application\Web->Icinga\Application\{closure}() #1 {main}

```

I would appreciate any pointer on what I have done wrong and how to continue to debug and be able to fix my grafana module installation. I should also mention that this is my first icinga installation so everything is very new to me.

Best regards Assar W.

---

<div class="post-metadata">

**Author:** ![Mocem1](https://community.icinga.com/user_avatar/community.icinga.com/mocem1/32/6618_2.png) [@Mocem1](https://community.icinga.com/u/Mocem1)\
**Post date:** [April 3, 2023, 6:59am UTC](https://community.icinga.com/t/how-to-debug-providedhook-grapher-not-found-in-usr-share-icingaweb2/11713/2 "2023-04-03T06:59:59Z")

</div>

Hi,

Last week I ran into exactly the same issue and haven’t solved it yet.

This morning I found this issue [Graphics not shown in Icinga Web 2 - Grapher not found · Issue #311 · Mikesch-mp/icingaweb2-module-grafana · GitHub](https://github.com/Mikesch-mp/icingaweb2-module-grafana/issues/311)  
It seems there is a bug.

Keep in mind for Grafana module 2.0.1 you also need icingadb and icingadb-web. If you don’t have it you can downgrade to 1.4.2.

Regards,  
Marco

---

<div class="post-metadata">

**Author:** ![Assar-Westman](https://community.icinga.com/user_avatar/community.icinga.com/assar-westman/32/6602_2.png) [@Assar-Westman](https://community.icinga.com/u/Assar-Westman)\
**Post date:** [April 3, 2023, 8:14am UTC](https://community.icinga.com/t/how-to-debug-providedhook-grapher-not-found-in-usr-share-icingaweb2/11713/3 "2023-04-03T08:14:38Z")

</div>

Hi  
It seems like a confirmed bug now, so it is just to wait for the v2.0.2 release of the Icinga2 grafana module.  
Thanks to all who are involved in the Icinga development