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Why do I get Exception in thread “main” java.lang.NoClassDefFoundError:edu/stanford/nlp/tagger/maxent/MaxentTagger?

April 26, 2017edu exception java.lang.noclassdeffounderror main NLP Stanford tagger thread

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Why do I get Exception in thread “main” java.lang.NoClassDefFoundError:edu/stanford/nlp/tagger/maxent/MaxentTagger?

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This means your Java CLASSPATH isn’t set correctly, so the tagger (in stanford-tagger.jar) isn’t being found. See the examples in the README.txt file for how to set the classpath with the -cp or -classpath option. See, e.g., http://en.wikipedia.org/wiki/Classpath_(Java) for general discussion of the Java classpath.