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Re: [Discuss-gnuradio] undefined symbol with gr-uhd block

From: Josh Blum
Subject: Re: [Discuss-gnuradio] undefined symbol with gr-uhd block
Date: Mon, 22 Nov 2010 08:26:51 -0800
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20101027 Thunderbird/3.1.6

Well, the symbol is brought into swig here (at the bottom) http://gnuradio.org/cgit/gnuradio.git/tree/gr-uhd/swig/uhd_swig.i?h=next&id=d74eacddbb8875479fef1d9ca75f36fca78df792#n117

Maybe the libuhd.so is not in your library path, or ldconfig, or just rebuilt the source to be sure. -Josh

On 11/22/2010 07:32 AM, Alonso Asier wrote:
  Hi all!

I'm trying to use the uhd driver in the grc environment with the gr-uhd blocks 
(more exactly the single USRP source) but in runtime I receive the following 

Traceback (most recent call last):
   File "/home/sdrproject/gnuradio/gnuradio-examples/grc/top_block.py", line 16, 
     import uhd_swig
   File "/usr/local/lib/python2.6/dist-packages/uhd_swig/__init__.py", line 25, 
     from uhd_swig_swig import *
   File "/usr/local/lib/python2.6/dist-packages/uhd_swig/uhd_swig_swig.py", line 24, 
     _uhd_swig_swig = swig_import_helper()
   File "/usr/local/lib/python2.6/dist-packages/uhd_swig/uhd_swig_swig.py", 
line 20, in swig_import_helper
     _mod = imp.load_module('_uhd_swig_swig', fp, pathname, description)
ImportError: /usr/local/lib/libgnuradio-uhd_swig-3.3.0.so.0: undefined symbol: 

My files names look like this (interesting?):

ls /usr/local/lib/libgnuradio-uhd*

does anyone has some clue?

Un saludo / Best Regards

Asier Alonso Muñoz

Investigador / Researcher

Tecnalia, Parque Tecnológico, Edificio 202. E-48170 Zamudio (Bizkaia) (SPAIN)
Tel: +34 94 600 22 66 ext: 229, Fax: +34 94 600 22 99
address@hidden, www.tecnalia.com<http://www.tecnalia.com>

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