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[Discuss-gnuradio] Undefined symbol _Z20gr_make_io_signatureiii

From: Hsin-mu Tsai
Subject: [Discuss-gnuradio] Undefined symbol _Z20gr_make_io_signatureiii
Date: Thu, 26 Jul 2007 15:28:21 -0400


I am trying to run example scripts under
gnuradio/gnuradio-examples/python/digital. All of them failed with
similar error rmessages like the following:

Traceback (most recent call last):
 File "./benchmark_tx.py", line 32, in ?
   from transmit_path import transmit_path
line 22, in ?
   from gnuradio import gr, gru, blks
 File "/usr/local/lib/python2.4/site-packages/gnuradio/blks/__init__.py",
line 37, in ?
   exec "from gnuradio.blksimpl.%s import *" % (f,)
 File "<string>", line 1, in ?
 File "/usr/local/lib/python2.4/site-packages/gnuradio/blksimpl/cvsd.py",
line 24, in ?
   from gnuradio.vocoder import cvsd_vocoder
 File "/usr/local/lib/python2.4/site-packages/gnuradio/vocoder/cvsd_vocoder.py",
line 6, in ?
   import _cvsd_vocoder
undefined symbol: _Z20gr_make_io_signatureiii

However, I was able to run usrp_fft.py, and other scripts in usrp
directory. I'm using gnuradio 3.0.3 release and Fedora Core 6.

I saw similar messages in the mail list a while ago, but it seems that
nobody came up with any idea to fix this problem. What's the cause of
this problem?

Any suggestions would be appreciated. Thanks!


Hsin-Mu (Michael) Tsai
Ph.D. Student
Electrical and Computer Engineering Department
Carnegie Mellon University

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