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Re: [SPAM][RBL+] [Discuss-gnuradio] undefined symbol error:

From: Michael Dickens
Subject: Re: [SPAM][RBL+] [Discuss-gnuradio] undefined symbol error:
Date: Mon, 3 Mar 2008 09:33:40 -0500

On Mar 2, 2008, at 9:28 PM, Qi Chen wrote:
ImportError: /usr/local/lib/python2.4/site-packages/gnuradio/gr/ _gnuradio_swig_py_runtime.so: undefined symbol: _ZN28gr_single_threaded_scheduler4stopEv

It looks like '/usr/local/lib' isn't in the library search path. If you're running on some versions of Linux, you'll need to update the ld.so cache after installing GNU Radio:

$ cat /etc/ld.so.conf
--> if /usr/local/lib isn't in this file, then do the following 3 commands; otherwise, go to the end and run that command:
$ cp /etc/ld.so.conf /tmp/ld.so.conf
$ echo /usr/local/lib >> /tmp/ld.so.conf
$ sudo mv /tmp/ld.so.conf /etc/ld.so.conf


$ sudo ldconfig

now try running those GNU Radio scripts again and if it still fails, please include your computer's setup info: how you installed GNU Radio, OS and version, how you installed background apps and such. - MLD

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