Hello Members,

I am using GNU Radio 3.7.10.1 and have created a new OOT module using
gr_modtool.
I have created two blocks 1) Random Phase Perturbation 2) Apply BF weight,
again using gr_modtool

My goal is to update the parameter *'bf_weight*' of Apply BF weight block
using the function probe
with function *poll_complex_gain()* defined in the block Random Phase
Perturbation.

*Block: Random Phase Perturbation*

This block has accessor method "poll_complex_gain" defined in its
*randphpert4_f_impl.h* file as below:

gr_complex poll_complex_gain() const { return d_complex_gain;}


While running GRC, I am getting below run-time error:

Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/home/genesys/Documents/EnergyHarvesting-Project/top_block.py",
line 80, in _bf_weight_probe
    val = self.EnergyBeamforming_randphpert4_f_0.poll_complex_gain()
*AttributeError*: 'randphpert4_f_sptr' object has no attribute '
*poll_complex_gain*'



While searching for similar problems, I found a solution in the thread
https://lists.gnu.org/archive/html/discuss-gnuradio/2014-06/msg00152.html,
which mentioned

*to add the accessor in the include/*.h file as a virtual member function*

I defined virtual function poll_complex_gain in *randphpert4_f.h* file as below

virtual gr_complex poll_complex_gain() const { return d_complex_gain; }

But, I am still getting the same error as above.


Please let me know, where am I making mistake.
Any help would be appreciated.


Thanks in advance.

Regards,
Kunal Sankhe
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