# Listener: Error creating 

**URL:** <https://community.wowza.com/t/listener-error-creating/33950>\
**Category:** Wowza Streaming Engine\
**Created:** [April 16, 2015, 10:56am UTC](https://community.wowza.com/t/listener-error-creating/33950 "2015-04-16T10:56:47Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Peter\_Bednar](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@Peter\_Bednar](https://community.wowza.com/u/Peter_Bednar)\
**Post date:** [April 16, 2015, 10:56am UTC](https://community.wowza.com/t/listener-error-creating/33950/1 "2015-04-16T10:56:47Z")

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Hi

I am trying to setup Load Balancer on wowza streaming engine, but I get this error when I am configuring load balancer

ERROR server comment 2015-04-16 20:48:42 - - - - - 0.714 - - - - - - - - ServerUtils.loadServerListener: Error creating (com.wowza.wms.plugin.loadbalancer.ServerListenerLoadBalancerListener) : java.lang.ClassNotFoundException: com.wowza.wms.plugin.loadbalancer.ServerListenerLoadBalancerListener|at java.net.URLClassLoader$1.run(URLClassLoader.java:366)|at java.net.URLClassLoader$1.run(URLClassLoader.java:355)|at java.security.AccessController.doPrivileged(Native Method)|at java.net.URLClassLoader.findClass(URLClassLoader.java:354)|at java.lang.ClassLoader.loadClass(ClassLoader.java:425)|

I just followed README in load balancer .zip file, I have copied .wms.plugin.loadbalancer to lib folder and enabled ServerListener in Server.xml.

Thanks

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**Author:** ![Jason\_Hilton](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_hilton/32/437_2.png) [@Jason\_Hilton](https://community.wowza.com/u/Jason_Hilton)\
**Post date:** [April 17, 2015, 12:33pm UTC](https://community.wowza.com/t/listener-error-creating/33950/2 "2015-04-17T12:33:34Z")

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Hi,

Please create a ticket by sending an email to support@wowza.com so we can investigate this further.

When creating the ticket include a ZIP file which contains the following directories for analysis:

[Wowza-Install]/conf/

[Wowza-Install]/logs/

Please make sure you provide logs which show Wowza server starting.

If you are not sure how to get this information please see the following tutorial.

[How to create a compressed zip file in Windows, OS X, and Linux](https://www.wowza.com/docs/how-to-create-a-compressed-zip-file-in-windows-os-x-and-linux)

Regards,

Jason

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**Author:** ![Peter\_Bednar](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@Peter\_Bednar](https://community.wowza.com/u/Peter_Bednar)\
**Post date:** [April 21, 2015, 7:55am UTC](https://community.wowza.com/t/listener-error-creating/33950/3 "2015-04-21T07:55:56Z")

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As usual problem on my side, I used configuration for load balancer 2.0.

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**Author:** ![Jason\_Hilton](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_hilton/32/437_2.png) [@Jason\_Hilton](https://community.wowza.com/u/Jason_Hilton)\
**Post date:** [April 22, 2015, 1:18pm UTC](https://community.wowza.com/t/listener-error-creating/33950/4 "2015-04-22T13:18:07Z")

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Hi Nik,

That’s okay, thanks for the update.

Jason