# server update

**URL:** <https://forum.servoy.com/t/server-update/12441>\
**Category:** Classic Servoy\
**Created:** [July 5, 2010, 3:02pm UTC](https://forum.servoy.com/t/server-update/12441 "2010-07-05T15:02:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![lesouef](https://avatars.discourse-cdn.com/v4/letter/l/7993a0/32.png) [@lesouef](https://forum.servoy.com/u/lesouef)\
**Post date:** [July 5, 2010, 3:02pm UTC](https://forum.servoy.com/t/server-update/12441/1 "2010-07-05T15:02:50Z")

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trying to update a server fails…

[http://downloads.servoy.com/downloads/5 … s/servoy\_u](http://downloads.servoy.com/downloads/5xx_updates/servoy_update.jar.960http://downloads.servoy.com/downloads/5xx_updates/servoy_u)  
date.jar.961Exception in thread “main” java.lang.NoClassDefFoundError: com/servoy/j2db/Zb/Za  
at com.servoy.j2db.util.VersionCheck.main(VersionCheck.java:57)  
Caused by: java.lang.ClassNotFoundException: com.servoy.j2db.Zb.Za  
at java.net.URLClassLoader$1.run(Unknown Source)  
at java.security.AccessController.doPrivileged(Native Method)  
at java.net.URLClassLoader.findClass(Unknown Source)  
at java.lang.ClassLoader.loadClass(Unknown Source)  
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)  
at java.lang.ClassLoader.loadClass(Unknown Source)

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**Author:** ![lesouef](https://avatars.discourse-cdn.com/v4/letter/l/7993a0/32.png) [@lesouef](https://forum.servoy.com/u/lesouef)\
**Post date:** [July 7, 2010, 10:47am UTC](https://forum.servoy.com/t/server-update/12441/2 "2010-07-07T10:47:51Z")

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did not find what was wrong, I had to uninstall and install again, then the update went ok.

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**Author:** ![lvostinar](https://yyz2.discourse-cdn.com/flex010/user_avatar/forum.servoy.com/lvostinar/32/5248_2.png) [@lvostinar](https://forum.servoy.com/u/lvostinar)\
**Post date:** [July 7, 2010, 12:39pm UTC](https://forum.servoy.com/t/server-update/12441/3 "2010-07-07T12:39:32Z")

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> lesouef:  
> did not find what was wrong, I had to uninstall and install again, then the update went ok.

Maybe this is related to a bug we had in updater jar; probably the first updater was coming from earlier release.

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**Author:** ![lesouef](https://avatars.discourse-cdn.com/v4/letter/l/7993a0/32.png) [@lesouef](https://forum.servoy.com/u/lesouef)\
**Post date:** [July 7, 2010, 1:02pm UTC](https://forum.servoy.com/t/server-update/12441/4 "2010-07-07T13:02:23Z")

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went from 5.1.2 to 5.1.4, but not 100% sure.  
the installer I had was 5.1.0, so I used that to re-install, and it did all updates till 5.1.4 w/o any pb.