Not able to run Coreference Resolution tool

[Kool DBA]

Hi ,
I am doing all the other steps properly but this step is giving error:

java -Xmx1024m -DWNSEARCHDIR=$WORDNET_HOME/dict -Duser.language=en opennlp.tools.lang.english.TreebankLinker $OPENNLP_HOME/models/english/coref < out4.txt > out5.txt
Exception in thread "main" java.lang.NoClassDefFoundError: net/didion/jwnl/JWNLException
        at opennlp.tools.coref.sim.Context.getLemmas(Context.java:144)
        at opennlp.tools.coref.sim.Context.getSynsetSet(Context.java:129)
        at opennlp.tools.coref.sim.Context.init(Context.java:73)
        at opennlp.tools.coref.sim.Context.<init>(Context.java:47)
        at opennlp.tools.coref.mention.MentionContext.<init>(MentionContext.java:72)
        at opennlp.tools.coref.mention.MentionContext.<init>(MentionContext.java:102)
        at opennlp.tools.coref.AbstractLinker.constructMentionContexts(AbstractLinker.java:260)
        at opennlp.tools.coref.AbstractLinker.getEntities(AbstractLinker.java:214)
        at opennlp.tools.lang.english.TreebankLinker.main(TreebankLinker.java:126)
Caused by: java.lang.ClassNotFoundException: net.didion.jwnl.JWNLException
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)

Can someone help me to solve this problem?

[Thomas Morton]

Hi,
   Add jwnl-1.3.3.jar in the lib directory to your classpath.  Hope this helps…Tom