Huh. Can you share your top_block.py with us? Best regards,
Marcus On 01/30/2017 10:00 PM, Sonny Rajagopalan wrote: > Hi Marcus, > > Appreciate your time with this. This output was observed when I > followed your instructions: > > 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 "./top_block.py", line 73, in <module> > main() > File "./top_block.py", line 63, in main > tb.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! > > > The following flow graph was used for this: > > Inline image 1 > > On Mon, Jan 30, 2017 at 2:48 PM, Marcus Müller > <[email protected] <mailto:[email protected]>> wrote: > > Hi Sonny, > > please always make sure to reply to the list! > > Ah, shoot, it backtraces the wrong thread :/ I can help you get a > proper backtrace, but maybe we'll just take it the other way around: > > Can you please make a clean, new flowgraph, use the osmocom > source. Connect it to a null sink instead of WXGui and use "No > GUI" and "run to completion" in the block options. > > Does it work now? > > The error you see is emitted by pmt.cc , line 1469 in my version > of GNU Radio. The only case where I saw that exception ever been > thrown myself is when I intentionally broke message passing by > changing message port names. That is really unlikely to happen > normally, so I wonder where that comes from. > > Right now, my best guess is WX GUI, and that's what I'd like to > rule out. By the way, you should be able to replace WXGUI with Qt > GUI practically everywhere – we're planning to discard WXGUI > completely with the next GNU Radio release. > > > Best regards, > > Marcus > > > On 01/30/2017 08:37 PM, Sonny Rajagopalan wrote: >> Here's what I got: >> >> GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1 >> Copyright (C) 2014 Free Software Foundation, Inc. >> License GPLv3+: GNU GPL version 3 or later >> <http://gnu.org/licenses/gpl.html <http://gnu.org/licenses/gpl.html>> >> This is free software: you are free to change and redistribute it. >> There is NO WARRANTY, to the extent permitted by law. Type "show >> copying" >> and "show warranty" for details. >> This GDB was configured as "x86_64-linux-gnu". >> Type "show configuration" for configuration details. >> For bug reporting instructions, please see: >> <http://www.gnu.org/software/gdb/bugs/ >> <http://www.gnu.org/software/gdb/bugs/>>. >> Find the GDB manual and other documentation resources online at: >> <http://www.gnu.org/software/gdb/documentation/ >> <http://www.gnu.org/software/gdb/documentation/>>. >> For help, type "help". >> Type "apropos word" to search for commands related to "word"... >> Reading symbols from python2.7...Reading symbols from >> /usr/lib/debug//usr/bin/python2.7...done. >> done. >> Starting program: /usr/bin/python2.7 ./top_block.py >> [Thread debugging using libthread_db enabled] >> Using host libthread_db library >> "/lib/x86_64-linux-gnu/libthread_db.so.1". >> linux; GNU C++ version 4.8.4; Boost_105400; >> UHD_3.11.0.git-59-g52ca2e0b >> >> [New Thread 0x7fffd6481700 (LWP 15978)] >> [New Thread 0x7fffd5c80700 (LWP 15979)] >> [New Thread 0x7fffd4eb7700 (LWP 15980)] >> [New Thread 0x7fffc5124700 (LWP 15981)] >> 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 >> [New Thread 0x7fffbffff700 (LWP 15982)] >> [Thread 0x7fffbffff700 (LWP 15982) exited] >> [New Thread 0x7fffbffff700 (LWP 15983)] >> [Thread 0x7fffbffff700 (LWP 15983) exited] >> [New Thread 0x7fffbffff700 (LWP 15984)] >> [New Thread 0x7fffbf7fe700 (LWP 15985)] >> [Thread 0x7fffbf7fe700 (LWP 15985) exited] >> [Thread 0x7fffbffff700 (LWP 15984) exited] >> [New Thread 0x7fffbffff700 (LWP 15986)] >> [New Thread 0x7fffbf7fe700 (LWP 15987)] >> [Thread 0x7fffbf7fe700 (LWP 15987) exited] >> [Thread 0x7fffbffff700 (LWP 15986) exited] >> [New Thread 0x7fffbffff700 (LWP 15988)] >> [New Thread 0x7fffbf7fe700 (LWP 15989)] >> [Thread 0x7fffbf7fe700 (LWP 15989) exited] >> [Thread 0x7fffbffff700 (LWP 15988) exited] >> [New Thread 0x7fffbffff700 (LWP 15990)] >> [Thread 0x7fffbffff700 (LWP 15990) exited] >> [New Thread 0x7fffbffff700 (LWP 15991)] >> [Thread 0x7fffbffff700 (LWP 15991) exited] >> [New Thread 0x7fffbffff700 (LWP 15992)] >> [Thread 0x7fffbffff700 (LWP 15992) exited] >> [New Thread 0x7fffbffff700 (LWP 15993)] >> [Thread 0x7fffbffff700 (LWP 15993) exited] >> [New Thread 0x7fffbffff700 (LWP 15994)] >> Number of USB devices: 13 >> USB device 1d50:6089: 0000000000000000909864c82c3a2fcf match >> Using HackRF One with firmware 2015.07.2 >> [New Thread 0x7fffbf7fe700 (LWP 15995)] >> Traceback (most recent call last): >> File "./top_block.py", line 100, in <module> >> main() >> File "./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! >> >> OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO^C >> Program received signal SIGINT, Interrupt. >> sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85 >> 85../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S: No such file >> or directory. >> #0 sem_wait () at >> ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85 >> #1 0x000000000056aae4 in PyThread_acquire_lock (lock=0x2cb2900, >> waitflag=1) at ../Python/thread_pthread.h:324 >> #2 0x000000000055e6be in lock_PyThread_acquire_lock.71666 >> (self=0x7fffe218c950, args=<optimized out>) at >> ../Modules/threadmodule.c:52 >> #3 0x0000000000523f6d in call_function (oparg=<optimized out>, >> pp_stack=0x7fffffffd0b0) at ../Python/ceval.c:4020 >> #4 PyEval_EvalFrameEx (f=f@entry= >> ---Type <return> to continue, or q <return> to quit--- >> Frame 0x1f169b0, for file /usr/lib/python2.7/threading.py, >> line 339, in wait (self=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7fffe218c930>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7fffe218c930>, _Condition__waiters=[<thread.lock at remote >> 0x7fffe218c950>], release=<built-in method release of thread.lock >> object at remote 0x7fffe218c930>) at remote 0x7fffd81cd790>, >> timeout=None, waiter=<thread.lock at remote 0x7fffe218c950>, >> saved_state=None), throwflag=throwflag@entry=0) at >> ../Python/ceval.c:2666 >> #5 0x0000000000555551 in PyEval_EvalCodeEx (co=0x7ffff59d5db0, >> globals=<optimized out>, locals=locals@entry=0x0, args=<optimized >> out>, argcount=argcount@entry=1, kws=<optimized out>, >> kwcount=kwcount@entry=0, defs=defs@entry=0x7ffff30b35a8, >> defcount=1, closure=0x0) at ../Python/ceval.c:3252 >> #6 0x0000000000524338 in fast_function (nk=0, na=1, n=<optimized >> out>, pp_stack=0x7fffffffd2a0, func=<function at remote >> 0x7ffff304e668>) at ../Python/ceval.c:4116 >> #7 call_function (oparg=<optimized out>, >> pp_stack=0x7fffffffd2a0) at ../Python/ceval.c:4041 >> #8 PyEval_EvalFrameEx ( >> f=f@entry=Frame 0x7fffd81e2b90, for file >> /usr/lib/python2.7/threading.py, line 949, in join >> (self=<point_label_thread(_Thread__ident=140736499697408, >> _Thread__block=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7fffe218c930>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7fffe218c930>, _Condition__waiters=[<thread.lock at remote >> 0x7fffe218c950>], release=<built-in method release of thread.lock >> object at remote 0x7fffe218c930>) at remote 0x7fffd81cd790>, >> _Thread__name='Thread-2', _Thread__daemonic=False, >> _Thread__kwargs={}, >> _Thread__started=<_Event(_Verbose__verbose=False, >> _Event__flag=True, >> _Event__cond=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7fffe218c910>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7fffe218c910>, _Condition__waiters=[], release=<built-in method >> release of thread.lock object at remote 0x7fffe218c910>) at >> remote 0x7fffd81cd6d0>) at remote 0x7fffd81cd610>, >> _Thread__stderr=<file at remote 0...(truncated), >> throwflag=throwflag@entry=0) at ../Python/ceval.c:2666 >> #9 0x0000000000555551 in PyEval_EvalCodeEx (co=0x7ffff3097930, >> globals=<optimized out>, locals=locals@entry=0x0, args=<optimized >> out>, argcount=argcount@entry=1, kws=<optimized out>, >> kwcount=kwcount@entry=0, defs=defs@entry=0x7ffff30458a8, >> defcount=1, closure=0x0) at ../Python/ceval.c:3252 >> #10 0x0000000000524338 in fast_function (nk=0, na=1, n=<optimized >> out>, pp_stack=0x7fffffffd490, func=<function at remote >> 0x7ffff3050578>) at ../Python/ceval.c:4116 >> #11 call_function (oparg=<optimized out>, >> pp_stack=0x7fffffffd490) at ../Python/ceval.c:4041 >> #12 PyEval_EvalFrameEx ( >> f=f@entry=Frame 0x7fffc47c7b00, for file >> /usr/lib/python2.7/threading.py, line 1107, in _exitfunc >> (self=<_MainThread(_Thread__ident=140737353922368, >> _Thread__block=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7ffff7f5f1f0>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7ffff7f5f1f0>, _Condition__waiters=[], release=<built-in method >> release of thread.lock object at remote 0x7ffff7f5f1f0>) at >> remote 0x7ffff3045c50>, _Thread__name='MainThread', >> _Thread__daemonic=False, >> _Thread__started=<_Event(_Verbose__verbose=False, >> _Event__flag=True, >> _Event__cond=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7ffff7f5f1d0>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7ffff7f---Type <return> to continue, or q <return> to quit--- >> 5f1d0>, _Condition__waiters=[], release=<built-in method release >> of thread.lock object at remote 0x7ffff7f5f1d0>) at remote >> 0x7ffff3045b90>) at remote 0x7ffff3045ad0>, _Thread__stderr=<file >> at remote 0x7ffff7fad1e0>, _Thread__target=None, >> _Thread__kwargs={},...(truncated), throwflag=throwflag@entry=0) >> at ../Python/ceval.c:2666 >> #13 0x0000000000568b3a in PyEval_EvalCodeEx (closure=<optimized >> out>, defcount=<optimized out>, defs=0x0, kwcount=<optimized >> out>, kws=<optimized out>, argcount=-998475008, >> args=<optimized out>, locals=0x0, globals=<optimized out>, >> co=<optimized out>) at ../Python/ceval.c:3252 >> #14 function_call (func=func@entry=<function at remote >> 0x7ffff3050de8>, >> arg=arg@entry=(<_MainThread(_Thread__ident=140737353922368, >> _Thread__block=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7ffff7f5f1f0>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7ffff7f5f1f0>, _Condition__waiters=[], release=<built-in method >> release of thread.lock object at remote 0x7ffff7f5f1f0>) at >> remote 0x7ffff3045c50>, _Thread__name='MainThread', >> _Thread__daemonic=False, >> _Thread__started=<_Event(_Verbose__verbose=False, >> _Event__flag=True, >> _Event__cond=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7ffff7f5f1d0>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7ffff7f5f1d0>, _Condition__waiters=[], release=<built-in method >> release of thread.lock object at remote 0x7ffff7f5f1d0>) at >> remote 0x7ffff3045b90>) at remote 0x7ffff3045ad0>, >> _Thread__stderr=<file at remote 0x7ffff7fad1e0>, >> _Thread__target=None, _Thread__kwargs={}, >> _Verbose__verbose=False, _Thread__args=(), _Thread__stopped=True, >> _Thread__initialized=True)...(truncated), kw=kw@entry=0x0) at >> ../Objects/funcobject.c:526 >> #15 0x00000000004c2604 in PyObject_Call (kw=0x0, >> arg=(<_MainThread(_Thread__ident=140737353922368, >> _Thread__block=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7ffff7f5f1f0>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7ffff7f5f1f0>, _Condition__waiters=[], release=<built-in method >> release of thread.lock object at remote 0x7ffff7f5f1f0>) at >> remote 0x7ffff3045c50>, _Thread__name='MainThread', >> _Thread__daemonic=False, >> _Thread__started=<_Event(_Verbose__verbose=False, >> _Event__flag=True, >> _Event__cond=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7ffff7f5f1d0>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7ffff7f5f1d0>, _Condition__waiters=[], release=<built-in method >> release of thread.lock object at remote 0x7ffff7f5f1d0>) at >> remote 0x7ffff3045b90>) at remote 0x7ffff3045ad0>, >> _Thread__stderr=<file at remote 0x7ffff7fad1e0>, >> _Thread__target=None, _Thread__kwargs={}, >> _Verbose__verbose=False, _Thread__args=(), _Thread__stopped=True, >> _Thread__initialized=True)...(truncated), func=<function at >> remote 0x7ffff3050de8>) at ../Objects/abstract.c:2529 >> #16 instancemethod_call.8802 (func=<function at remote >> 0x7ffff3050de8>, func@entry=<instancemethod at remote >> 0x7ffff7ec5500>, >> arg=(<_MainThread(_Thread__ident=140737353922368, >> _Thread__block=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7ffff7f5f1f0>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7ffff7f5f1f0>, _Condition__waiters=[], release=<built-in method >> release of thread.lock object at remote 0x7ffff7f5f1f0>) at >> remote 0x7ffff3045c50>, _Thread__name='MainThread', >> _Thread__daemonic=False, >> _Thread__started=<_Event(_Verbose__verbose=False, >> _Event__flag=True, >> _Event__cond=<_Condition(_Verbose__verbose=False, >> _Condition__lock=<thread.lock at remote 0x7ffff7f5f1d0>, >> acquire=<built-in method acquire of thread.lock object at remote >> 0x7ffff7f5f1d0>, _Condition__waiters=[], release=<built-in method >> release of thread.lock object at remote 0x---Type <return> to >> continue, or q <return> to quit--- >> 7ffff7f5f1d0>) at remote 0x7ffff3045b90>) at remote >> 0x7ffff3045ad0>, _Thread__stderr=<file at remote 0x7ffff7fad1e0>, >> _Thread__target=None, _Thread__kwargs={}, >> _Verbose__verbose=False, _Thread__args=(), _Thread__stopped=True, >> _Thread__initialized=True)...(truncated), arg@entry=(), >> kw=kw@entry=0x0) at ../Objects/classobject.c:2602 >> #17 0x0000000000510bc2 in PyObject_Call (kw=0x0, arg=(), >> func=<instancemethod at remote 0x7ffff7ec5500>) at >> ../Objects/abstract.c:2529 >> #18 call_function_tail (args=(), callable=<instancemethod at >> remote 0x7ffff7ec5500>) at ../Objects/abstract.c:2561 >> #19 PyObject_CallMethod (o=<optimized out>, name=<optimized out>, >> format=<optimized out>) at ../Objects/abstract.c:2638 >> #20 0x00000000004265d5 in wait_for_thread_shutdown () at >> ../Python/pythonrun.c:1720 >> #21 Py_Finalize () at ../Python/pythonrun.c:413 >> #22 0x0000000000466e21 in Py_Main (argc=<optimized out>, >> argv=0x7fffffffdad8) at ../Modules/main.c:665 >> #23 0x00007ffff7818f45 in __libc_start_main (main=0x466e50 >> <main>, argc=2, argv=0x7fffffffdad8, init=<optimized out>, >> fini=<optimized out>, rtld_fini=<optimized out>, >> stack_end=0x7fffffffdac8) >> at libc-start.c:287 >> #24 0x0000000000577c2e in _start () >> (gdb) >> >> >> On Mon, Jan 30, 2017 at 2:27 PM, Marcus Müller >> <[email protected] <mailto:[email protected]>> wrote: >> >> 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/ >>> <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] <mailto:[email protected]> >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> <https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> >> _______________________________________________ >> Discuss-gnuradio mailing list [email protected] >> <mailto:[email protected]> >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> <https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> >>
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