Synchronize Tasks in DAC

I had this error recently in DAC Client while trying to Synchronize Task.

MESSAGE:::Failed to create folder/workflow/session cache file
EXCEPTION CLASS::: com.siebel.analytics.etl.infa.interaction.PmrepUtilsException

This happens if you have not created/changed INFA_DOMAINS_FILE and PATH variables to point to domains.infa and path to bin directory respectively.