[Discuss-gnuradio] Error when using 'UHD: USRP Source' in GRC

[Jordan Otomo]

Hi,

I'm having some trouble getting my N210 running using GRC. The problem seems to 
be with the block 'UHD: USRP Source', as I get the following error when 
building a simple project (USRP and FFT sink block):

Traceback (most recent call last):
  File "/home/jotomo/Documents/usrp_n210/top_block.py", line 74, in <module>
    tb = top_block()
  File "/home/jotomo/Documents/usrp_n210/top_block.py", line 51, in __init__
    num_channels=1,
  File "/usr/local/lib/python2.6/dist-packages/gnuradio/uhd/__init__.py", line 
73, in constructor_interceptor
    if kwargs.has_key(key): kwargs[key] = cast(kwargs[key])
  File "/usr/local/lib/python2.6/dist-packages/gnuradio/uhd/uhd_swig.py", line 
409, in __init__
    this = _uhd_swig.new_io_type_t(*args)
NotImplementedError: Wrong number or type of arguments for overloaded function 
'new_io_type_t'.
  Possible C/C++ prototypes are:
    uhd::io_type_t(uhd::io_type_t::tid_t)
    uhd::io_type_t(size_t)


The only potential solution that I have found so far is described here:

http://lists.gnu.org/archive/html/discuss-gnuradio/2009-12/msg00036.html

However, I'm hoping that I can find a more straightforward solution than 
removing all of the libraries and reinstalling, since I just performed the 
install.  I'm using Ubuntu 10.10 and am running the latest version of 
gnu-radio.  I'm able to run the UHD examples on the N210 without any problems, 
and have been successful with GRC using a USRP2.  Any help would be greatly 
appreciated!

Thanks,
Jordan