Ayman,

Are you successfully compiling your block that includes the serial library?

I recently had a similar problem where my block compiles but has a swig runtime error. It is most likely that your install cannot find the library to link to at runtime. Try modifying LD_LIBRARY_PATH to include the path to your serial library.

Here is the command you would use: 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:*/path/to/serial*'

*/- Seth


/*
On 11/17/2014 08:29 AM, Marcus Müller wrote:
Hi Ayman,

you wrote your original question on a sunday and try to hurry things by asking but 24hrs later -- that might be a bit impatient for an open source project with volunteers trying to help you with something that has not much to do with their project, but with your usage of a completely different library ;)

However: you're not linking properly against your serial library, as it seems. Make sure you modify the CMakeLists in your project's root and lib/ folder to include the library you want to link against..

Best regards,
Marcus

On 11/17/2014 12:59 PM, Ayman Hendawy wrote:
​kindly, could some one figure out my problem.

Thanks​

On Sun, Nov 16, 2014 at 1:30 PM, Ayman Hendawy<ayman.hend...@gmail.com>
wrote:

Hi,

I installed libserial to access serial port by C++ from gnu radio, I
included
#include <SerialStream.h>
#include <iostream>
to lib/XXXX.cc file,
I can compile successfully, but when I run top_block.py file I get the
following error,

Traceback (most recent call last):
   File "./top_block.py", line 13, in <module>
     import C700
   File "/usr/local/lib/python2.7/dist-packages/C700/__init__.py", line 45,
in <module>
     from C700_swig import *
   File "/usr/local/lib/python2.7/dist-packages/C700/C700_swig.py", line
28, in <module>
     _C700_swig = swig_import_helper()
   File "/usr/local/lib/python2.7/dist-packages/C700/C700_swig.py", line
24, in swig_import_helper
     _mod = imp.load_module('_C700_swig', fp, pathname, description)
ImportError: /usr/local/lib/libgnuradio-C700.so: undefined symbol:
_ZN9LibSerial15SerialStreamBuf9showmanycEv

what is this? kindly advice.

Thanks

--
Best regards

Ayman Hendawy
Embedded system engineer
http://www.linkedin.com/pub/ayman-hendawy/28/375/b5

Cairo,Egypt

Phone: +201110406659





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