Just so the mailing list doesn't feel out of the loop and the archives have the solution:
We successfully tracked this issue to resolution here: https://bugs.gentoo.org/show_bug.cgi?id=540658 and merged the fix into gnuradio here: https://github.com/gnuradio/gnuradio/pull/387/ Thanks, Zero_Chaos On 02/18/15 16:13, Mike Markowski wrote: > I was excited to successfully try an rtl-sdr GRC demo/tutorial and > decided to start following the gnuradio tutorials to better learn the > program. I quickly ran into trouble, so am sure I've done something > stupid but can't figure out what! Running through tutorial > > http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorial_GRC > > and reaching section 2.2.3, 'Generate' goes fine, but not 'Execute': > > > Generating: "/home/mm/gnuradio/tutorial_two_1.py" > > Executing: "/home/mm/gnuradio/tutorial_two_1.py" > > Traceback (most recent call last): > File "/home/mm/gnuradio/tutorial_two_1.py", line 13, in <module> > from gnuradio import qtgui > File "/usr/lib/python2.7/site-packages/gnuradio/qtgui/__init__.py", > line 34, in <module> > from qtgui_swig import * > File "/usr/lib/python2.7/site-packages/gnuradio/qtgui/qtgui_swig.py", > line 28, in <module> > _qtgui_swig = swig_import_helper() > File "/usr/lib/python2.7/site-packages/gnuradio/qtgui/qtgui_swig.py", > line 24, in swig_import_helper > _mod = imp.load_module('_qtgui_swig', fp, pathname, description) > ImportError: /usr/lib/libgnuradio-qtgui-3.7.6.1.so.0.0.0: undefined > symbol: _ZN7QwtPlot11eventFilterEP7QObjectP6QEvent > >>>> Done (return code 1) > > The machine I'm on is a gentoo box with gnuradio compiled as follows > (notice qt4 is specified): > > # emerge -pv gnuradio > > These are the packages that would be merged, in order: > > Calculating dependencies... done! > [ebuild R ] net-wireless/gnuradio-3.7.6.1:0/3.7.6.1::gentoo > USE="alsa analog audio ctrlport digital doc examples fcd filter grc jack > oss qt4 sdl utils wavelet wxwidgets -atsc -channels -dtv -fec -log -noaa > -pager -performance-counters -portaudio {-test} -trellis -uhd -vocoder > -zeromq" PYTHON_TARGETS="python2_7" 0 KiB > > Total: 1 package (1 reinstall), Size of downloads: 0 KiB > > As I mentioned, all works well with RTL-SDR source, so I assume there is > a QT problem of some sort? > > Thanks! > Mike Markowski > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio