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https://issues.apache.org/jira/browse/CTAKES-534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16867430#comment-16867430
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Gandhirajan commented on CTAKES-534:
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Try using metamorphosys for UMLS installation and checkout. Please refer the
link - https://www.ncbi.nlm.nih.gov/books/NBK9683/
> Error while creating custom dictionary
> --------------------------------------
>
> Key: CTAKES-534
> URL: https://issues.apache.org/jira/browse/CTAKES-534
> Project: cTAKES
> Issue Type: Bug
> Reporter: Deepa
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: ctakes dictionary.png
>
>
> Hello There!
> I followed the article given here [Dictionary Creator
> GUI|https://cwiki.apache.org/confluence/display/CTAKES/Dictionary+Creator+GUI].
> After choosing *UMLS installation* directory tool starts loading but dont
> stop. What might be the problem?
> I choose *UMLS installation* directory from path
> apache-ctakes-4.0.0/bin/ctakes-ytex/scripts/data/umls.
>
> Error :
> 14 Jun 2019 18:25:00 INFO MainPanel - Parsing vocabulary types from
> /opt/apache-ctakes-4.0.0/bin/ctakes-ytex/scripts/data/META/MRCONSO.RRF
> Exception in thread "pool-1-thread-1" java.lang.ClassCastException: class
> jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class
> [java.net|http://java.net/].URLClassLoader
> (jdk.internal.loader.ClassLoaders$AppClassLoader and
> [java.net|http://java.net/].URLClassLoader are in module java.base of loader
> 'bootstrap')
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