Re: [Discuss-gnuradio] .so: undefined symbol: _ZN2gr6blocks12count_bits16E

[Aditya Dhananjay]

You could also try "sudo ldconfig". It looks like the linker can't find some required symbols.

Happy hacking!

On Mon, Feb 10, 2014 at 12:59 PM, Nick Foster <address@hidden> wrote:

Usually a "make clean" will solve this.

--n

On Mon, Feb 10, 2014 at 9:57 AM, raf raf <address@hidden> wrote:

Hi all gnuradio users,

I have an error when I try to execute a python script after adding a new block.

My block is add to a gnuradio 3.7 with gr_modtool with a command :

gr_modtool add -t sync packet_sink

The module containing a blocks is ieee_868_915. The error is  :

Traceback (most recent call last):
  File "./qa_symbols_to_chips_bs.py", line 25, in <module>
    import ieee_868_915
  File "/usr/local/lib/python2.7/dist-packages/ieee_868_915/__init__.py", line 45, in <module>
    from ieee_868_915_swig import *
  File "/usr/local/lib/python2.7/dist-packages/ieee_868_915/ieee_868_915_swig.py", line 26, in <module>
    _ieee_868_915_swig = swig_import_helper()
  File "/usr/local/lib/python2.7/dist-packages/ieee_868_915/ieee_868_915_swig.py", line 22, in swig_import_helper
    _mod = imp.load_module('_ieee_868_915_swig', fp, pathname, description)
ImportError: /usr/local/lib/libgnuradio-ieee_868_915.so: undefined symbol: _ZN2gr6blocks12count_bits16Ej


I tried to delete a lib file libgnuradio-ieee_868_915.so and reinstall all a block, but it didn't give a result.


Please help me to fix this error.

Thank you.

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