[Discuss-gnuradio] No attribute 'message_port_register_hier_out'

[Gong Zhang]

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'

Screenshot from 2013-08-23 21:15:53.png
Description: PNG image