Upgrade problem 4.1 - 4.11

I am trying to upgrade Servoy 4.1 to 4.11

I run the following and get this error.

Any ideas?

D:\Program Files\Servoy>java -jar servoy_updater.jar
Exception in thread “main” java.lang.NoClassDefFoundError: com/servoy/j2db/util/
Utils
at com.servoy.j2db.develop.cmd.VersionCheck.parseArgs(VersionCheck.java:
222)
at com.servoy.j2db.develop.cmd.VersionCheck.main(VersionCheck.java:239)
Caused by: java.lang.ClassNotFoundException: com.servoy.j2db.util.Utils
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)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
… 2 more

Cheers
David Younger :lol:

Maybe you are using an old jar ? (see topic from : viewtopic.php?f=1&t=11333#p56683 ) Try with the jar over there. Or maybe the file structure is changed ( it needs the j2db.jar to be located in ‘application_server/lib/j2db.jar’ ).