irdeapd freebsd start problem

/usr/local/etc/rc.d # ./iredapd start
./iredapd: line 11: set_rcvar: command not found
Starting iredapd ...
Traceback (most recent call last):
  File "/opt/iredapd/iredapd.py", line 182, in <module>
    main()
  File "/opt/iredapd/iredapd.py", line 159, in main
    DaemonSocket((settings.listen_address, int(settings.listen_port)))
  File "/opt/iredapd/iredapd.py", line 110, in __init__
    self.bind(localaddr)
  File "/usr/local/lib/python2.7/asyncore.py", line 342, in bind
    return self.socket.bind(addr)
  File "/usr/local/lib/python2.7/socket.py", line 224, in meth
    return getattr(self._sock,name)(*args)
socket.error: [Errno 49] Can't assign requested address
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