ID:20151 Unsupported file format version found on line <number>

CAUSE: The file format version found on the specified line is not supported by the Signal Activity File (.saf) reader.

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.