Cortex M3 System Design - Simulation Environment

I followed the Arm Cortex-M System Design Kit - Example System Guide to establish simulation environment, but encountered some difficulties when I run "make compile" in terminal.

Warning-[STASKW_CO1] Cannot open file
  The file 'debugtester_le.hex' could not be opened. No such file or directory.
  Please ensure that the file exists with proper permissions.

Warning-[STASKW_RMCOF] Cannot open file
../../../logical/models/memories/cmsdk_ahb_ram_beh.v, 77
  Cannot open file 'debugtester_le.hex' passed as argument to $readmem.
  Please verify that the first argument to $readmem is a file that exists with proper permissions.

More questions in this forum