[Discuss-gnuradio] Number of Samples Problem

[njm25]

I am getting an error when running the usrp_rx_cfile.py example.  I try to 
specify the number of samples to collect using the -N option, and I keep 
getting an error that the destination is already in use.  If I don't use the -N 
option, I don't get this error and it works fine.  The actual error that I get 
is shown below:

Traceback (most recent call last):
  File "usrp_rx_cfile_new.py", line 113, in ?
    my_graph().run()
  File "usrp_rx_cfile_new.py", line 86, in __init__
    self.connect(self.u, self.head, self.convert2, self.dst2)
  File 
"/usr/local/lib/python2.4/site-packages/gnuradio/gr/basic_flow_graph.py", line 
115, in connect
    self._connect (points[i-1], points[i])
  File 
"/usr/local/lib/python2.4/site-packages/gnuradio/gr/basic_flow_graph.py", line 
120, in _connect
    self._connect_prim (s, d)
  File 
"/usr/local/lib/python2.4/site-packages/gnuradio/gr/basic_flow_graph.py", line 
127, in _connect_prim
    self._check_dst_in_use (dst_endpoint)
  File 
"/usr/local/lib/python2.4/site-packages/gnuradio/gr/basic_flow_graph.py", line 
219, in _check_dst_in_use
    raise ValueError, ("destination endpoint already in use: %s" % 
(dst_endpoint))
ValueError: destination endpoint already in use: <endpoint (<gr_block head 
(5)>, 0)>

Thanks,
Nick