Re: [Discuss-gnuradio] Newbie problem

Just a followup to my own note. I did

ldd /usr/lib/libgnuradio-qtgui-3.7.6.1.so.0.0.0

and no library comes up as missing.

Thanks,
Mike Markowski

On 02/18/2015 04:13 PM, 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