# Wowza IDE 2 and debugger not working!

**URL:** <https://community.wowza.com/t/wowza-ide-2-and-debugger-not-working/36434>\
**Category:** Wowza Developer Dojo\
**Tags:** wowza-streaming-server-java-api\
**Created:** [February 19, 2014, 6:15pm UTC](https://community.wowza.com/t/wowza-ide-2-and-debugger-not-working/36434 "2014-02-19T18:15:19Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Janez\_Makovsek](https://avatars.discourse-cdn.com/v4/letter/j/ed655f/32.png) [@Janez\_Makovsek](https://community.wowza.com/u/Janez_Makovsek)\
**Post date:** [February 19, 2014, 6:15pm UTC](https://community.wowza.com/t/wowza-ide-2-and-debugger-not-working/36434/1 "2014-02-19T18:15:19Z")

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Hi!

We now have a licensed Wowza Streaming Engine 4.0. The server starts and works including plugins. What does not work is ability to debug the plugins (which otherwise work) from the Eclipse IDE. I followed the instrunctions, installed Java SDK, Eclipse, got everything building and no errors are reported.

However, when I try to launch the debugger or the Server from the within the Eclipse IDE i get the following error message:

Error starting: java.lang.reflect.InvocationTargetException

java.lang.reflect.InvocationTargetException

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:606)

at com.wowza.wms.bootstrap.Bootstrap.startServer(Bootstrap.java:555)

at com.wowza.wms.bootstrap.Bootstrap.main(Bootstrap.java:67)

Caused by: java.lang.NoClassDefFoundError: org/apache/commons/lang/SystemUtils

at com.wowza.wms.bootstrap.BootstrapSystemTuningInfo.getSystemTuningInfo(BootstrapSystemTuningInfo.java:81)

at com.wowza.wms.server.ServerTuningHandler.(ServerTuningHandler.java:248)

at com.wowza.wms.server.Server.(Server.java:862)

at com.wowza.wms.server.Server.getInstance(Server.java:907)

at com.wowza.wms.server.Server.start(Server.java:956)

… 6 more

Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang.SystemUtils

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)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

… 11 more

There must be something wrong with how the Eclipse is trying to launch the Wowza server, but I have no idea what. All settings are default settings.

Thanks!

Atmapuri

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**Author:** ![Alex\_KAI](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@Alex\_KAI](https://community.wowza.com/u/Alex_KAI)\
**Post date:** [February 23, 2014, 12:47am UTC](https://community.wowza.com/t/wowza-ide-2-and-debugger-not-working/36434/2 "2014-02-23T00:47:31Z")

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Hi Atmapuri!

You need properly configure the Eclipse.Take a look at this article:

[How to use Wowza IDE with Wowza Transcoder AddOn](https://www.wowza.com/docs/how-to-use-eclipse-ide-with-wowza-transcoder)

Best regards,

Alex

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**Author:** ![Soeren\_Steinmann](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@Soeren\_Steinmann](https://community.wowza.com/u/Soeren_Steinmann)\
**Post date:** [February 28, 2015, 4:24pm UTC](https://community.wowza.com/t/wowza-ide-2-and-debugger-not-working/36434/3 "2015-02-28T16:24:35Z")

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Thank you! That was a big help:

-Dcom.wowza.wms.native.base=“win”

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**Author:** ![Jonathan\_Casarrubias](https://avatars.discourse-cdn.com/v4/letter/j/7feea3/32.png) [@Jonathan\_Casarrubias](https://community.wowza.com/u/Jonathan_Casarrubias)\
**Post date:** [June 2, 2014, 12:57pm UTC](https://community.wowza.com/t/wowza-ide-2-and-debugger-not-working/36434/4 "2014-06-02T12:57:57Z")

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Great, I had the same issue and got fixed with this solution. Thanks