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ERROR while scanning for plugins at

edited March 2015 in - Usage


this problem has been reported here several times, but no one has been answered so far as I could see. For multiple plugins I get error messages like this:


ERROR while scanning for plugins at: file:/C:/Users/michal.meyers/.ProM641/packages/etconformance-6.4.168/ETConformance.
   in file :org.processmining.plugins.multietc.automaton.AutomatonVis
java.lang.NoClassDefFoundError: edu/uci/ics/jung/algorithms/layout/Layout
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
        at java.lang.Class.privateGetPublicMethods(Unknown Source)
        at java.lang.Class.getMethods(Unknown Source)
        at org.processmining.framework.plugin.impl.PluginManagerImpl.isGoodPlugin(
        at org.processmining.framework.plugin.impl.PluginManagerImpl.loadClass(
        at org.processmining.framework.plugin.impl.PluginManagerImpl.scanUrl(
        at org.processmining.framework.plugin.impl.PluginManagerImpl.register(
        at org.processmining.framework.plugin.impl.PluginManagerImpl.register(
        at org.processmining.framework.boot.Boot.addJarsForPackage(
        at org.processmining.framework.boot.Boot.boot(
        at org.processmining.contexts.uitopia.UI.main(
Caused by: java.lang.ClassNotFoundException: edu.uci.ics.jung.algorithms.layout.Layout
        at$ Source)
        at$ Source)
        at Method)
        at Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)

It happened when copying the .ProM641-Folder from one Windows machine to the other (I have no internet connection on the target machine). Is it maybe because of a different java version?

The program starts but there are missing essential plugins because of that.
Could someone help me out?

Thank you very much in advance!

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