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Regarding an error in the gr-packetizer

From: Yash Agrawal 18410
Subject: Regarding an error in the gr-packetizer
Date: Sat, 28 Aug 2021 23:55:19 +0530

Hello everyone,
I am currently working on the project "'Implementation of a packet encoder/decoder pair in the GNU radio framework'".I am getting some an error while running the project shown as:
Showing: "/home/dragon/chchc/gnuradioproject-master/gr-packetizer/examples/chain_rx_debug_differential.grc"

Generating: '/home/dragon/chchc/gnuradioproject-master/gr-packetizer/examples/chain_rx_debug.py'

Executing: /usr/bin/python -u /home/dragon/chchc/gnuradioproject-master/gr-packetizer/examples/chain_rx_debug.py

Using Volk machine: avx2_64_mmx_orc
Traceback (most recent call last):
  File "/home/dragon/chchc/gnuradioproject-master/gr-packetizer/examples/chain_rx_debug.py", line 810, in <module>
  File "/home/dragon/chchc/gnuradioproject-master/gr-packetizer/examples/chain_rx_debug.py", line 798, in main
    tb = top_block_cls()
  File "/home/dragon/chchc/gnuradioproject-master/gr-packetizer/examples/chain_rx_debug.py", line 506, in __init__
    self.packetizer_preamble_header_payload_demux_0 = packetizer.preamble_header_payload_demux(32/constel_header.bits_per_symbol(), 1, 0, "packet_len", "corr_est", False, gr.sizeof_gr_complex, "rx_time", samp_rate, ("phase_est","time_est"), 0, len(preamble), constel_payload.bits_per_symbol())
AttributeError: 'module' object has no attribute 'preamble_header_payload_demux'

Hence, I am not able to generate any type of data. So, any leads will be thankful.

- Thanks and Regards
Yash Agrawal
Electrical Engineering and Computer Sciences Department

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