Either try running the app from
runGitHub("eUTOPIA", "Greco-Lab", subdir="eUTOPIA-app")
or from
runUrl("https://github.com/Greco-Lab/eUTOPIA/archive/master.zip", subdir="eUTOPIA-app")
I got this error
ERROR: zero-length inputs cannot be mixed with those of non-zero length
Best