Re: Getting "referenced unknown base type gr::block"

[Marcus Müller]

Hi Niko,

this looks strange.
The most likely explanation is that you might be mixing some different 
versions/installations of GNU Radio. Would that be possible?

Best regards,
Marcus

On 26.05.22 17:11, Nikoloz Glonti wrote:
> Hi everyone,
>
> I have newest gnuradio 3.10, and I'm compiling example QPSK block - 
> https://wiki.gnuradio.org/index.php?title=Guided_Tutorial_GNU_Radio_in_C%2B%2B
> But when trying to run it i get following error.
>
>    File "/home/ng/Desktop/bloczki/gr-spektralsi/build/python/testFiltru.py", line 35, in 
> <module>
>      from gnuradio import pec
>    File "/usr/local/lib/python3.10/site-packages/gnuradio/pec/__init__.py", line 18, in 
> <module>
>      from .pec_python import *
> ImportError: generic_type: type "qpsk_demod_cb" referenced unknown base type 
> "gr::block"
>
> How can i fix it?
>
> Thank You in advance
> Niko