[Discuss-gnuradio] output 0 is not connected internally
From:
Brad Hein
Subject:
[Discuss-gnuradio] output 0 is not connected internally
Date:
Wed, 29 Dec 2010 22:57:57 -0500
I'm endeavouring to get gnuradio+grc working in Fedora 14 on my i386 computers. I've tried two now, and I'm plagued with the same problems - they just won't execute.
I suspect there's a problem which went undetected, maybe a python file version mismatch or some other inconsistency. I'm trying hard to isolate the source of the problem.
I also wrote a very basic grc which consisted of a sound source and attached it to different sinks (audio sync / waterfall sink / scope sink) - each producing the same error shown below, when executed.
I'm trying different things, but any input would be greatly appreciated =)
The error shown when executed ===================================
Executing: "/usr/share/grc/examples/audio/phone_tones.grc.xml" >>> Verbose: Traceback (most recent call last):
File "/usr/share/grc/src/ExecFlowGraphGUI.py", line 231, in OnInit self.SetTopWindow(FlowGraphFrame(self.flow_graph_file_path))#first argument is the flow graph File "/usr/share/grc/src/ExecFlowGraphGUI.py", line 165, in __init__
self._start() #start the flow graph File "/usr/share/grc/src/ExecFlowGraph.py", line 54, in _start self.start() File "/usr/lib/python2.7/site-packages/gnuradio/gr/top_block.py", line 97, in start
self._tb.start() File "/usr/lib/python2.7/site-packages/gnuradio/gr/gnuradio_swig_py_runtime.py", line 1455, in start return _gnuradio_swig_py_runtime.gr_top_block_sptr_start(self) RuntimeError: In hierarchical block scope throttle, output 0 is not connected internally
>>> Done
RPM Package list on Fedora14 notebook PC (basically identical to the other F14 PC) ===============================================================