improved error messages for bad config
improved error messages for bad config

samsara/samsara,samsara/samsara,ChallenHB/samsara,ChallenHB/samsara,ChallenHB/samsara,samsara/samsara,samsara/samsara,samsara/samsara,ChallenHB/samsara,ChallenHB/samsara,samsara/samsara