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Re: gr-tutorial error
From: |
Wojciech Kazubski |
Subject: |
Re: gr-tutorial error |
Date: |
Fri, 29 Oct 2021 14:48:37 +0200 |
> Good afternoon,
>
> I am working on the tutorial for creating My QPSK Demodulator block and it
> seems that I have run into an error when I execute the flow graph. The
> error:
> Traceback (most recent call last):
> File "/home/mariom/gr-tutorial/build/top_block.py", line 191, in <module>
> main()
> File "/home/mariom/gr-tutorial/build/top_block.py", line 167, in main
> tb = top_block_cls()
> File "/home/mariom/gr-tutorial/build/top_block.py", line 82, in __init__
> self.tutorial_my_qpsk_demod_cb_0 = tutorial.my_qpsk_demod_cb(True)
> AttributeError: module 'tutorial' has no attribute 'my_qpsk_demod_cb'
>
> In case you in the link for the tutorial here it is: Click here
> <https://wiki.gnuradio.org/index.php/Guided_Tutorial_GNU_Radio_in_C%2B%2B>
>
> I have been looking at the My QPSK Demodulator code blocks to see if there
> was something I missed but it does not seem so. I'm using Ubuntu 20.04.3
> LTS and I downloaded Gnuradio 3.8.4.0. I'm not sure where to go after this.
> Any suggestions? Thank you for your time. Have a nice day.
>
> -Mario Moran
Gr-tutorial is GR-3.7 only and will not build with version 3.8 or 3.9.
If you want to follow QPSK demodulation tutorial, there is a link to
mpsk_stage6.grc flowgraph there that does not require My QPSK Demodulator
block.
--
Wojciech Kazubski