I remember that I reinstall to the latest gnuradio entirely and then the error disappeared.
On Mon, May 27, 2013 at 12:36 PM, Guy Holtzman <[email protected]> wrote: > I am having the same issue, I tried Josh suggestion without success. > I have installed Extras and pre-cog using: > https://github.com/jmalsbury/pre-cog/wiki/Installation > > what should I do to make it work? > > > > > here is a error log containing the versions I am using: > > linux; GNU C++ version 4.6.3; Boost_104800; UHD_003.005.003-78-g49a4929b > > <<< Welcome to GNU Radio Companion 3.6.4.1 >>> > > Loading: "/home/guy/Documents/tdma_hier.grc" > >>> Done > > Showing: "/home/guy/Documents/tdma_hier.grc" > > Loading: "/home/guy/Documents/tdma_radio.grc" > >>> Done > > Showing: "/home/guy/Documents/tdma_radio.grc" > > Generating: "/home/guy/Documents/tdma_radio.py" > >>> Warning: This flow graph may not have flow control: no audio or usrp > blocks found. Add a Misc->Throttle block to your flow graph to avoid CPU > congestion. > > Executing: "/home/guy/Documents/tdma_radio.py" > > linux; GNU C++ version 4.6.3; Boost_104800; UHD_003.005.003-78-g49a4929b > > Traceback (most recent call last): > File "/home/guy/Documents/tdma_radio.py", line 8, in <module> > execfile("/home/guy/.grc_gnuradio/tdma_hier.py") > File "/home/guy/.grc_gnuradio/tdma_hier.py", line 14, in <module> > > import gnuradio.extras as gr_extras > File > "/usr/local/lib/python2.7/dist-packages/gnuradio/extras/__init__.py", line > 20, in <module> > from extras_swig import * > File > "/usr/local/lib/python2.7/dist-packages/gnuradio/extras/extras_swig.py", > line 26, in <module> > _extras_swig = swig_import_helper() > File > "/usr/local/lib/python2.7/dist-packages/gnuradio/extras/extras_swig.py", > line 22, in swig_import_helper > _mod = imp.load_module('_extras_swig', fp, pathname, description) > ImportError: libgnuradio-extras.so: cannot open shared object file: No > such file or directory > > > > Thanks, Guy > > > > On Wed, Feb 20, 2013 at 8:22 PM, Alex Zhang <[email protected]>wrote: > >> Maybe it is due to my own building which is very obsolete. I will try to >> reinstall the latest version of gnuradio and grextras. >> >> >> On Tue, Feb 19, 2013 at 5:35 PM, Alex Zhang <[email protected]>wrote: >> >>> It does not work after the modification and rebuilding of the grextras. >>> >>> My modification: >>> >>> diff --git a/swig/CMakeLists.txt b/swig/CMakeLists.txt >>> index 129d789..42732a3 100644 >>> --- a/swig/CMakeLists.txt >>> +++ b/swig/CMakeLists.txt >>> @@ -58,7 +58,7 @@ foreach(incdir ${GRUEL_INCLUDE_DIRS}) >>> list(APPEND GR_SWIG_INCLUDE_DIRS ${incdir}/gruel/swig) >>> endforeach(incdir) >>> >>> -set(GR_SWIG_LIBRARIES gnuradio-extras) >>> +list(APPEND GR_SWIG_LIBRARIES gnuradio-extras >>> ${GNURADIO_CORE_LIBRARIES} ${G >>> set(GR_SWIG_DOC_FILE ${CMAKE_CURRENT_BINARY_DIR}/extras_swig_doc.i) >>> set(GR_SWIG_DOC_DIRS >>> ${CMAKE_CURRENT_SOURCE_DIR}/../include/gnuradio/extras) >>> >>> >>> On Tue, Feb 19, 2013 at 5:06 PM, Josh Blum <[email protected]> wrote: >>> >>>> >>>> >>>> On 02/19/2013 04:59 PM, Alex Zhang wrote: >>>> > Hi, >>>> > >>>> > I believe some other guys met this problem before, but I did not find >>>> the >>>> > final solution expressed clearly. >>>> > >>>> > After I installed the gnuradio, grextras, then in my python code >>>> which trys >>>> > to import the extras_swig like >>>> > >>>> > import gnuradio.extras as gr_extras >>>> > File >>>> > "/usr/local/lib/python2.7/dist-packages/gnuradio/extras/__init__.py", >>>> line >>>> > 20, in <module> >>>> > from extras_swig import * >>>> > File >>>> > >>>> "/usr/local/lib/python2.7/dist-packages/gnuradio/extras/extras_swig.py", >>>> > line 26, in <module> >>>> > _extras_swig = swig_import_helper() >>>> > File >>>> > >>>> "/usr/local/lib/python2.7/dist-packages/gnuradio/extras/extras_swig.py", >>>> > line 22, in swig_import_helper >>>> > _mod = imp.load_module('_extras_swig', fp, pathname, description) >>>> > ImportError: /usr/local/lib/libgnuradio-extras.so: undefined symbol: >>>> > _ZN15gr_msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEES4_ >>>> > >>>> > >>>> > Can any one shed a light on it? >>>> >>>> Maybe its missing a library to link w/ >>>> >>>> Can you try this and let me know? >>>> >>>> http://pastebin.com/t5GL5Z6G >>>> >>>> -josh >>>> > >>>> > >>>> > >>>> > _______________________________________________ >>>> > Discuss-gnuradio mailing list >>>> > [email protected] >>>> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> > >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing list >>>> [email protected] >>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> >>> >>> >>> >>> -- >>> >>> Alex, >>> *Dreams can come true – just believe.* >>> >> >> >> >> -- >> >> Alex, >> *Dreams can come true – just believe.* >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> [email protected] >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> > -- Alex, *Dreams can come true – just believe.*
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