ClassNotFoundException: org.slf4j.LoggerFactory

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Better to always download as your first try, the most recent version from the developer’s site

I had the same error message you had, and by downloading the jar from the above (slf4j-1.7.2.tar.gz most recent version as of 2012OCT13), untarring, uncompressing, adding 2 jars to build path in eclipse (or adding to classpath in comand line):

  1. slf4j-api-1.7.2.jar
  2. slf4j-simple-1.7.2.jar

I was able to run my program.

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