Re: [Discuss-gnuradio] Undefined symbol _Z20gr_make_io_signatureiii

[Eric Blossom]

On Thu, Jul 26, 2007 at 03:28:21PM -0400, Hsin-mu Tsai wrote:
> Hi,
> 
> I am trying to run example scripts under
> gnuradio/gnuradio-examples/python/digital. All of them failed with
> similar error rmessages like the following:

Michael,

I believe you have a partial install from some version of svn and then
tried to install 3.0.3 over the top of that.

Do this:

  $ rm -fr /usr/local/lib/python2.4/site-packages/gnuradio

then reinstall 3.0.3.  If you've already got 3.0.3 built, "make install"
should do the trick.

Eric




> Traceback (most recent call last):
>  File "./benchmark_tx.py", line 32, in ?
>    from transmit_path import transmit_path
>  File 
>  
> "/home/hsinmut/src/gnuradio-3.0.3/gnuradio-examples/python/digital/transmit_path.py",
> 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
> ImportError: 
> /usr/local/lib/python2.4/site-packages/gnuradio/vocoder/_cvsd_vocoder.so:
> 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!
> 
> -Michael
> 
> 
> -- 
> Hsin-Mu (Michael) Tsai
> Ph.D. Student
> Electrical and Computer Engineering Department
> Carnegie Mellon University
>