Hi, I execute the flowgraph in attachment and I got the following. What's the problem? I'm using Ubuntu 12.04, boost 1.48 and gnuradio 3.6.4. Thanks in advance.
Traceback (most recent call last):
File "/home/harry/Desktop/qwer/GRC/top_block.py", line 75, in <module>
tb = top_block()
File "/home/harry/Desktop/qwer/GRC/top_block.py", line 42, in __init__
self.pad_source_0 = None;self.message_port_register_hier_out("in")
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py",
line 94, in __getattr__
return getattr(self._tb, name)
AttributeError: 'gr_top_block_sptr' object has no attribute
'message_port_register_hier_out'
<<attachment: Screenshot from 2013-08-23 21:15:53.png>>
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