Executing the attached flow graph I get the following error.
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>>> gr_fir_ccc: using SSE
Traceback (most recent call last):
File "/home/manu/coding/top_block.py", line 72, in <module>
tb.Run(True)
File "/usr/local/lib/python2.7/dist-packages/grc_gnuradio/wxgui/top_block_gui.py", line 76, in Run
self.start()
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py", line 97, in start
self._tb.start(max_noutput_items)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gnuradio_core_runtime.py", line 3077, in start
return _gnuradio_core_runtime.gr_top_block_sptr_start(self, max_noutput_items)
RuntimeError: gr_buffer_add_reader: nzero_preload must be >= 0
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What could be the possible reason?
I have installed using build-gnuradio script on day before yesterday.