oneCmd.py fail on shell-ics vnc terminal

pfs@shell-ics:~$ oneCmd.py iic status
Traceback (most recent call last):
  File "/software/mhs/products/Linux64/tron_actorcore/2.2.5/bin/oneCmd.py", line 156, in <module>
    main()
  File "/software/mhs/products/Linux64/tron_actorcore/2.2.5/bin/oneCmd.py", line 152, in main
    printTimes=(not opts.noTimes))
  File "/software/mhs/products/Linux64/tron_actorcore/2.2.5/bin/oneCmd.py", line 27, in __init__
    self.identifyingCmd = self._identifyOurself()
  File "/software/mhs/products/Linux64/tron_actorcore/2.2.5/bin/oneCmd.py", line 53, in _identifyOurself
    user = os.getlogin().translate(tr)
FileNotFoundError: [Errno 2] No such file or directory