If the knowledge_base configuration parameter specifies a knowledge base map file that does not exist, the Enhanced Full-Text Search engine cannot start a session with Verity, and the server will not start. If the map file exists but contains invalid entries, Verity issues warning messages at start-up time. You can correct errors by editing the <textserver>.cfg file in the $SYBASE directory. You can correct path information and change the line beginning: “knowledge_base=”.