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using ubuntu 12.10 i am trying to run a python block, namely OP25, in GNU Radio Companion v3.6.3-35-g4435082f. i get the following error:

Executing: "/home/matt/op25_grc.py"

Imported legacy fsk4
Using Volk machine: ssse3_32
Traceback (most recent call last):
File "/home/matt/op25_grc.py", line 493, in <module>
tb = op25_grc()
File "/home/matt/op25_grc.py", line 231, in __init__
self.wxgui_fftsink2_0_0.set_callback(wxgui_fftsink2_0_0_callback)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/hier_block2.py", line 54, in __getattr__
return getattr(self._hb, name)
AttributeError: 'gr_hier_block2_sptr' object has no attribute 'set_callback'

i cannot find any sort of solution on the web anywhere. any sort of help will be much appreciated. thanks in advance.
 

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