missing permute.so

[limengze1991]

Hi, when I run stilt on mac system, it shows me this error:

source('r/dependencies.r')
Error in eval(ei, envir) :
calc_footprint(): failed to find permute.so in r/src/

Then I got a permute.so file from others and put it under r/src/ folder, it shows me this error:

source('r/dependencies.r')
Error in dyn.load(permute_exe) :
unable to load shared object '/Users/mac/Documents/Research/stilt/r/src/permute.so':
dlopen(/Users/mac/Documents/Research/stilt/r/src/permute.so, 0x0006): tried: '/Users/mac/Documents/Research/stilt/r/src/permute.so' (not a mach-o file), '/System/Volumes/Preboot/Cryptexes/OS/Users/mac/Documents/Research/stilt/r/src/permute.so' (no such file), '/Users/mac/Documents/Research/stilt/r/src/permute.so' (not a mach-o file)

Do you have any suggestions?