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javalinuxnlpclasspathstanford-nlp

slf4j issues in stanford core nlp and openccg

I'm following the ccgbank-README in openCCG when I have the following issue (just part of the log file):

ner-tag-text:
     [echo] NER tagging into file ./data/novel/two-sents.dir/nertext
     [echo] Models: ./stanford-nlp/classifiers/english.all.3class.distsim.crf.ser.gz , ./stanford-nlp/classifiers/english.muc.7class.distsim.crf.ser.gz, ./stanford-nlp/classifiers/english.conll.4class.distsim.crf.ser.gz
     [java] java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
     [java]     at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:194)
     [java]     at org.apache.tools.ant.taskdefs.Java.run(Java.java:771)
     [java]     at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:221)

which says that there is a NoClassDefFoundError with org/slf4j/LoggerFactory. I searched the Internet and I found many people had the same problem. So I followed this solution by adding 

slf4j-api-1.7.2.jar
slf4j-simple-1.7.2.jar

to my classpath. After that, I have the classpath as follows:

zhao@zhao-ubuntu:~$ echo $CLASSPATH
/home/zhao/slf4j-simple-1.7.21.jar:/home/zhao/slf4j-api-1.7.21.jar

However, this doesn't solve my problem.

Solution

  • Problem solved by using an version 1.3.4 of CoreNLP.