ID:20148 Illegal keyword <name> found on line number <number>

CAUSE: The specified illegal keyword was found in the Signal Activity File (.saf) on the specified line number.

ACTION: To avoid receiving this message in the future, Intel recommends that you use only the Simulator or the Power Analyzer to edit the Signal Activity File. Use quartus_sim or quartus_pow to regenerate the Signal Activity File. The Signal Activity File may also be edited so that the expected keyword is found.