Re: [Discuss-gnuradio] Error: undefined symbol: volk_malloc

[Richard Sharpe]

On Mon, Sep 29, 2014 at 9:49 PM, Hoang Ngo-Khac
<address@hidden> wrote:
> I did uninstall gnuradio and reinstall it but that error still occurs.

So, from below it looks like this shared-library:

   /usr/local/lib/libgnuradio-filter-3.7.3.so.0.0.0

cannot find a symbol it needs. If you use the following command:

   ldd /usr/local/lib/libgnuradio-filter-3.7.3.so.0.0.0

It will tell you all the other shared libraries this shared library
depends on. One of them is no longer in the correct place.

Send us the output of the above command.

Maybe you have a prebuilt package on your system like I did when I
first installed with pybombs.

> Hoang Ngo-Khac
> Research Assistant - Lab. of Signal and System, FET, UET, Vietnam National
> University-Hanoi (VNU-H)
> Alternative email:  address@hidden, address@hidden
> Mobilephone:  +84.163.682.7874
>
>
>> Date: Fri, 26 Sep 2014 11:08:38 -0700
>> Subject: Re: [Discuss-gnuradio] Error: undefined symbol: volk_malloc
>> From: address@hidden
>> To: address@hidden
>> CC: address@hidden
>>
>> On Thu, Sep 25, 2014 at 11:00 PM, Hoang Ngo-Khac
>> <address@hidden> wrote:
>> > Dear all,
>> >
>> > I had gnuradio-3.7.3 running normally. However, now everytime I run a
>> > flowgraph in GRC, it stops and throws an error:
>> >
>> > Traceback (most recent call last):
>> > File
>> > "/home/khachoang/GNU_Radio/test_grc/2Node_NoController/top_block.py",
>> > line 14, in <module>
>> > from gnuradio.filter import firdes
>> > File
>> > "/usr/local/lib/python2.7/dist-packages/gnuradio/filter/__init__.py",
>> > line 32, in <module>
>> > from filter_swig import *
>> > File
>> > "/usr/local/lib/python2.7/dist-packages/gnuradio/filter/filter_swig.py",
>> > line 28, in <module>
>> > _filter_swig = swig_import_helper()
>> > File
>> > "/usr/local/lib/python2.7/dist-packages/gnuradio/filter/filter_swig.py",
>> > line 24, in swig_import_helper
>> > _mod = imp.load_module('_filter_swig', fp, pathname, description)
>> > ImportError: /usr/local/lib/libgnuradio-filter-3.7.3.so.0.0.0: undefined
>> > symbol: volk_malloc
>> >
>> >
>> > I haven't seen it before and have no idea why. Before it become like
>> > that, I
>> > ran this command: apt-cache search libqt4.
>> >
>> > How should I fix it?
>>
>> The first step is to find out why the symbol is missing. Try:
>>
>> ldd /usr/local/lib/libgnuradio-filter-3.7.3.so.0.0.0
>>
>> and look for a missing shared library. That will tell you what went
>> wrong. Looks like maybe they changed the version or something.
>>
>> The quickest way is likely to reinstall it all with pybombs.
>>
>> --
>> Regards,
>> Richard Sharpe
>> (何以解憂？唯有杜康。--曹操)



-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)