Re: Problems with compiling oot module from gnuradio-companion on Ubuntu

Hi Vasil,

Thank you for replying. I installed gnuradio by these commands:

$ sudo apt-get install gnuradio

sudo apt-get install gnuradio-dev cmake libspdlog-dev clang-format

And I am on Linux (Ubunutu 20.04).

Here is the output when I type "ldd -r lib/lib*.so":

linux-vdso.so.1 (0x00007ffcc1f6c000)

libgnuradio-runtime.so.3.8.1 => /lib/x86_64-linux-gnu/libgnuradio-runtime.so.3.8.1 (0x00007f60a91db000)

libQt5Widgets.so.5 => /home/kbrannam/anaconda3/lib/libQt5Widgets.so.5 (0x00007f60a8ca9000)

libgnuradio-pmt.so.3.8.1 => /lib/x86_64-linux-gnu/libgnuradio-pmt.so.3.8.1 (0x00007f60a8c3e000)

liblog4cpp.so.5 => /lib/x86_64-linux-gnu/liblog4cpp.so.5 (0x00007f60a8bfa000)

libQt5Core.so.5 => /home/kbrannam/anaconda3/lib/libQt5Core.so.5 (0x00007f60a87e3000)

libstdc++.so.6 => /home/kbrannam/anaconda3/lib/libstdc++.so.6 (0x00007f60a866c000)

libgcc_s.so.1 => /home/kbrannam/anaconda3/lib/libgcc_s.so.1 (0x00007f60a8658000)

libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f60a8466000)

libvolk.so.2.2 => /lib/x86_64-linux-gnu/libvolk.so.2.2 (0x00007f60a8177000)

libboost_program_options.so.1.71.0 => /lib/x86_64-linux-gnu/libboost_program_options.so.1.71.0 (0x00007f60a80e8000)

libboost_filesystem.so.1.71.0 => /lib/x86_64-linux-gnu/libboost_filesystem.so.1.71.0 (0x00007f60a80ca000)

libboost_thread.so.1.71.0 => /lib/x86_64-linux-gnu/libboost_thread.so.1.71.0 (0x00007f60a809c000)

librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f60a8092000)

libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f60a806f000)

libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x00007f60a7feb000)

libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f60a7e9c000)

libQt5Gui.so.5 => /home/kbrannam/anaconda3/lib/./libQt5Gui.so.5 (0x00007f60a7ace000)

libGL.so.1 => /lib/x86_64-linux-gnu/libGL.so.1 (0x00007f60a7a46000)

libz.so.1 => /home/kbrannam/anaconda3/lib/./libz.so.1 (0x00007f60a7a26000)

libicui18n.so.58 => /home/kbrannam/anaconda3/lib/./libicui18n.so.58 (0x00007f60a77a7000)

libicuuc.so.58 => /home/kbrannam/anaconda3/lib/./libicuuc.so.58 (0x00007f60a75f4000)

libicudata.so.58 => /home/kbrannam/anaconda3/lib/./libicudata.so.58 (0x00007f60a5cf2000)

libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f60a5cea000)

libgthread-2.0.so.0 => /home/kbrannam/anaconda3/lib/./libgthread-2.0.so.0 (0x00007f60a5ce5000)

libglib-2.0.so.0 => /home/kbrannam/anaconda3/lib/./libglib-2.0.so.0 (0x00007f60a5bae000)

/lib64/ld-linux-x86-64.so.2 (0x00007f60a9322000)

liborc-0.4.so.0 => /lib/x86_64-linux-gnu/liborc-0.4.so.0 (0x00007f60a5b2b000)

libpng16.so.16 => /home/kbrannam/anaconda3/lib/././libpng16.so.16 (0x00007f60a5af2000)

libGLdispatch.so.0 => /lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007f60a5a38000)

libGLX.so.0 => /lib/x86_64-linux-gnu/libGLX.so.0 (0x00007f60a5a04000)

libpcre.so.1 => /home/kbrannam/anaconda3/lib/././libpcre.so.1 (0x00007f60a59bd000)

libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007f60a5880000)

libxcb.so.1 => /home/kbrannam/anaconda3/lib/./libxcb.so.1 (0x00007f60a5854000)

libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x00007f60a584c000)

undefined symbol: _ZN10MainWindowC1EP7QWidget (lib/libgnuradio-voxi.so)

Thank you so much for your help!

-Karlee

Karlee Brannam Software Engineer
855 South 192nd St, Suite 600 SeaTac, WA, 98148, United States www.micro-x.com

From: Vasil Velichkov <vvvelichkov@gmail.com>
Sent: Monday, October 10, 2022 12:06 PM
To: Karlee Brannam <kbrannam@micro-x.com>; discuss-gnuradio@gnu.org <discuss-gnuradio@gnu.org>
Subject: Re: Problems with compiling oot module from gnuradio-companion on Ubuntu 20.04 (gnuradio 3.8.1.0)

Hi Karlee,

On 08/10/2022 00.21, Karlee Brannam wrote:
> I am new to gnuradio and have completed the tutorials for creating custom oot modules.

Welcome to GNU Radio! How did you install gnuradio and which version? Which OS are you using?

> I am trying to implement an instrumentation, such as the ones given in gnuradio-qtgui. I have referred to the gitlab with the source code and created a oot module with a block that compiles with nothing in the window. However, I am struggling to implement my qtwidget class with the block. It gives me an error "(name of module) has no attribute to (oot block)".
>
> I have set the libraries and paths in my Cmakelists.txt and set my python and library paths. I have checked to make sure all my dependencies are up to date. I pass a QWidget pointer as a parameter in all the needed methods and referenced it in my implementation file.
>
> If you could help point me towards a simple example or instructions on how to create an instrumentation, that would be greatly appreciated!

In case you are using Linux then check if you have undefined symbols/references in the .so (shared object) file. Go in your OOT's build directory and execute

ldd -r lib/lib*.so

and provide the full output.

Also open `python/__init__.py`, change `ImportError` to `ModuleNotFoundError` and then reinstall and retest.

Best Regards,
Vasil

From:	Karlee Brannam
Subject:	Re: Problems with compiling oot module from gnuradio-companion on Ubuntu 20.04 (gnuradio 3.8.1.0)
Date:	Mon, 10 Oct 2022 19:18:28 +0000