checking package dependencies
compiling EClockMux1.bsv
code generation for sysEClockMux1 starts
Error: "EClockMux1.bsv", line 6, column 15: (G0067)
  The expression for a clock could not be evaluated. Clocks must be determined
  at compile time and cannot be computed dynamically.
  During elaboration of `the_x' at "EClockMux1.bsv", line 9, column 3.
  During elaboration of `sysEClockMux1' at "EClockMux1.bsv", line 2, column 8.