# Installation problem with WM Dev 8.0

**URL:** <https://techcommunity.softwareag.com/t/installation-problem-with-wm-dev-8-0/125724>\
**Category:** Feedback & ideas\
**Tags:** Discussions-on-this-Forum-System, New-User-Welcome-and-Introductions\
**Created:** [June 23, 2010, 9:31am UTC](https://techcommunity.softwareag.com/t/installation-problem-with-wm-dev-8-0/125724 "2010-06-23T09:31:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![PP\_R](https://avatars.discourse-cdn.com/v4/letter/p/a183cd/32.png) [@PP\_R](https://techcommunity.softwareag.com/u/PP_R)\
**Post date:** [June 23, 2010, 9:31am UTC](https://techcommunity.softwareag.com/t/installation-problem-with-wm-dev-8-0/125724/1 "2010-06-23T09:31:24Z")

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I have installed WM Developer 8 on my computer…but i could not open Developer component. When i run developer.bat file am getting following errors…Please help me out on this issue…

C:\SoftwareAG\Developer\bin\>developer.bat  
Exception in thread “main” java.lang.NoClassDefFoundError: com/wm/data/IData  
at java.lang.Class.forName0(Native Method)  
at java.lang.Class.forName(Class.java:247)  
at com.wm.proxy.Proxy.invokeStaticMethod(Proxy.java:163)  
at com.wm.app.dev.DeveloperMainProxy.main(DeveloperMainProxy.java:78)  
at com.wm.app.dev.DeveloperMainProxy.start(DeveloperMainProxy.java:156)  
at com.wm.app.Application.start(Application.java:363)  
at com.wm.app.Application.launch(Application.java:488)  
at com.wm.app.dev.Main.main(Main.java:43)  
Caused by: java.lang.ClassNotFoundException: com.wm.data.IData  
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)  
at java.security.AccessController.doPrivileged(Native Method)  
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)  
… 8 more

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**Author:** ![Pramod1](https://avatars.discourse-cdn.com/v4/letter/p/82dd89/32.png) [@Pramod1](https://techcommunity.softwareag.com/u/Pramod1)\
**Post date:** [June 10, 2011, 9:25am UTC](https://techcommunity.softwareag.com/t/installation-problem-with-wm-dev-8-0/125724/2 "2011-06-10T09:25:31Z")

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Hi,

I’m facing similar problem. Was this resolved and how?

Thanks,  
Pramod

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**Author:** ![gupta\_r.17495](https://avatars.discourse-cdn.com/v4/letter/g/9fc348/32.png) [@gupta\_r.17495](https://techcommunity.softwareag.com/u/gupta_r.17495)\
**Post date:** [June 10, 2011, 9:32pm UTC](https://techcommunity.softwareag.com/t/installation-problem-with-wm-dev-8-0/125724/3 "2011-06-10T21:32:58Z")

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Did you also contact SAG tech support reporting the issue or Empower [ID\_8.0](https://empower.softwareag.com/sl24sec/SecuredServices/KCFullTextASP/viewing/view.asp?key=514165-239278&DST=UPDATE) related Fixes?