# Kurento not finding a filter module

**URL:** <https://openvidu.discourse.group/t/kurento-not-finding-a-filter-module/4288>\
**Category:** Issues developing apps\
**Tags:** v2\
**Created:** [November 10, 2022, 7:12pm UTC](https://openvidu.discourse.group/t/kurento-not-finding-a-filter-module/4288 "2022-11-10T19:12:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![OM-user](https://avatars.discourse-cdn.com/v4/letter/o/fbc32d/32.png) [@OM-user](https://openvidu.discourse.group/u/OM-user)\
**Post date:** [November 10, 2022, 7:12pm UTC](https://openvidu.discourse.group/t/kurento-not-finding-a-filter-module/4288/1 "2022-11-10T19:12:19Z")

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I created a new filter module in Kurento, and am trying to use the OpenVidu filter tutorial demo to call it. I get the following error:

ERROR:org.kurento.client.internal.server.KurentoServerException:Factory ‘MfModule’ not found (Code:40108, Type:null, Data: {“type”:“MEDIA\_OBJECT\_NOT\_AVAILABLE”}) in Request: method:applyFilter params:{“streamId”:“str\_CAM\_EzHl\_con\_OH5bbSuOIm”,“type”:“MfModule”,“options”:“{}”} request:undefined

The modified Kurento instance that I am running seems to know about the module:

oot@ip-172-31-73-141:~# kurento-media-server --version | grep mf  
‘mfmodule’ version 0.0.1~0.g265f6b5

root@ip-172-31-73-141:~# kurento-media-server --list | grep mf  
mfmodule.MfModule

and I’m setting MfModule as one of the allowed filters when the token is created.

Any ideas?

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<div class="post-metadata">

**Author:** ![OM-user](https://avatars.discourse-cdn.com/v4/letter/o/fbc32d/32.png) [@OM-user](https://openvidu.discourse.group/u/OM-user)\
**Post date:** [November 11, 2022, 7:10pm UTC](https://openvidu.discourse.group/t/kurento-not-finding-a-filter-module/4288/2 "2022-11-11T19:10:46Z")

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Fixed it. Needed to create a debian package.