#FitNesse for Appian 1.6

Hi, I'm getting the below error while trying to run a test script
Unable to start test system 'slim': fitnesse.slim.SlimError: Error SLiM server died before a connection could be established. Error: Could not find or load main class Server\\FitNesseForAppian-1.6\\FitNesseForAppian.log4j.properties

Earlier we are using FitNesse 1.3.1 it is working fine, but we see this error in later FitNesse version 1.6

The below is the configured code in suite page
!***> FitNesse Configurations
!define TEST_SYSTEM {slim}
!define COMMAND_PATTERN {java -Dlog4j.configuration=file:///${automated.testing.home}/log4j.properties -cp %p %m}
!path ${automated.testing.home}/**.jar
***!

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