checking package dependencies
compiling LessThanLow.bsv
code generation for sysLevelFIFOTest starts
Error: "FIFOLevel.bsv", line 424, column 34: (S0015)
  Bluespec evaluation-time error: Argument of isLessThan must be in the range
  of 1 to 7; 0 is out of range.
  During elaboration of the body of rule `print_levels' at "LessThanLow.bsv",
  line 21, column 8.
  During elaboration of `sysLevelFIFOTest' at "LessThanLow.bsv", line 5,
  column 8.