Hi Sonny, that's unusual. Can you run
gdb -ex run -ex bt --args python2 '/mymachine/sdr/gnuradioProjects/flowGraphsFromGRC/top_block.py' and copy & paste the output backtrace? Ideally, we'd see *exactly* what crashes where. Best regards, Marcus On 01/30/2017 08:12 PM, Sonny Rajagopalan wrote: > Hello, > > I have a simple flow graph as shown (from this video tutorial > http://greatscottgadgets.com/sdr/1/): > > Inline image 1 > > The *.py that is created is attached. The code crashes with the > following error: > > Generating: > '/mymachine/sdr/gnuradioProjects/flowGraphsFromGRC/top_block.py' > > Generating: > '/mymachine/sdr/gnuradioProjects/flowGraphsFromGRC/top_block.py' > > Executing: /usr/bin/python2 -u > /mymachine/sdr/gnuradioProjects/flowGraphsFromGRC/top_block.py > > linux; GNU C++ version 4.8.4; Boost_105400; UHD_3.11.0.git-59-g52ca2e0b > > gr-osmosdr v0.1.x-xxx-xunknown (0.1.5git) gnuradio 3.7.10 > built-in source types: file osmosdr fcd rtl rtl_tcp uhd miri hackrf > bladerf rfspace airspy soapy redpitaya > Number of USB devices: 13 > USB device 1d50:6089: 0000000000000000909864c82c3a2fcf match > Using HackRF One with firmware 2015.07.2 > Traceback (most recent call last): > File > "/mymachine/sdr/gnuradioProjects/flowGraphsFromGRC/top_block.py", line > 100, in <module> > main() > File > "/mymachine/sdr/gnuradioProjects/flowGraphsFromGRC/top_block.py", line > 95, in main > tb.Start(True) > File > "/usr/local/lib/python2.7/dist-packages/grc_gnuradio/wxgui/top_block_gui.py", > line 74, in Start > self.start() > File > "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py", > line 109, in start > top_block_start_unlocked(self._impl, max_noutput_items) > File > "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/runtime_swig.py", > line 4879, in top_block_start_unlocked > return _runtime_swig.top_block_start_unlocked(*args, **kwargs) > RuntimeError: list contains invalid format! > > > Gnuradio version: v3.7.10.1-182-g59136936, built using PyBOMBS; > python2.7 and 3.4 on system. I know Cinaed said this is operator > error, but some pointers for how to fixing this is appreciated. > > Any insights into how this can be fixed is appreciated. I raised this > issue with the HackRF people and they say it is better asked here. > > Thanks, > Sonny. > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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