Re: Problem building OOTs with GR 3.9.3.0 PPA package

[Ron Economos]

I just went through this myself with a user of my OOT's. It's due to a 
pybind11 version mismatch. The PPA is built with pybind11 v2.5.0 and if 
your system (such as Ubuntu 20.04) has a different version, you get that 
import error.

You have to build/install pybind11 v2.5.0 on your system to resolve the 
issue.

Here's the issue on my Github for reference.

https://github.com/drmpeg/gr-dvbgse/issues/3

Ron

On 10/15/21 12:30 PM, Daniel Estévez wrote:
> Hi,
>
> I've encountered a problem in the gr-satellites continuous integration 
> that I've traced to the change from GNU Radio 3.9.2.0 to 3.9.3.0 in 
> the Ubuntu 20.04 PPA package (which is what I'm using in my CI Docker 
> container).
>
> The problem is that after building gr-satellites from source using GNU 
> Radio 3.9.3.0 from the PPA package I get this error when importing the 
> Python module:
>
> Traceback (most recent call last):
>   File "<string>", line 1, in <module>
>   File "/usr/local/lib/python3/dist-packages/satellites/__init__.py", 
> line 44, in <module>
>     from .satellites_python import *
> ImportError: generic_type: type "ax100_decode" referenced unknown base 
> type "gr::block"
>
> The are no unusual messages during the compilation of gr-satellites.
>
> If instead of using the PPA package I build GNU Radio 3.9.3.0 from 
> source, then everything works.
>
> I haven't tried to do this with other OOT modules. Has anyone 
> encountered this problem?
>
> I have some Dockerfiles that can be used to replicate this problem. 
> See here:
>
> https://github.com/daniestevez/gr-satellites/issues/303#issuecomment-944604966 
>
>
> Best,
> Dani.