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

[Marcus Müller]

Sad, that rules out my first guess!
But I just realized that this tutorial is for GNU Radio 3.8, which you don't have if 
you've got a fresh Manjaro installation! Yay! (There's a small warning in the beginning of 
that page, but it could be more prominent.)

So, maybe rather follow the official C++ guide from the GNU Radio academy on 
https://tutorials.gnuradio.org.

That guide is a bit better illustrated and actually tested with modern GNU Radio :) and 
can be found under:

https://wiki.gnuradio.org/index.php?title=Creating_c%2B%2B_OOT_with_gr-modtool

Best regards,
Marcus

On 27.05.22 22:39, Nikoloz Glonti wrote:
> I was using only one version of Gnuradio - it was fresh install of GR on 
> Manjaro(newest one).
>
> Niko
>
> On 26.05.2022 23:17, Marcus Müller wrote:
> > 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