Re: GNURadio 3.8 - Ubuntu 20.04.01 LTS and Adalm-Pluto

[Christophe Seguinot]

Hi

I experienced a similar issue when using gr-osmosdr and gr-limesdr too so my experience could help for this problem (I did not use Adalm-Pluto)

I installed gnuradio 3.8.1 (bad idea since Synaptic always ask to update to 3.8.2) OR 3.8.2 from http://ppa.launchpad.net/gnuradio/gnuradio-releases/ubuntu; both version led to the same issue

• The strange thing is that on my ubuntu 20.04 computer gnuradio libraries (libgnuradio-xxxx.so) are under /usr/lib/x86_64-linux-gnu, while gr-xxx package are generally installed under /usr/local/lib/x86_64-linux-gnu.
  
• gr-osmosdr stuff was installed under /usr/local/lib/x86_64-linux-gnu (a different folder fron gnuradio libraries)
  
• futhermore, when for example 3.8.2 is installed from PPA, after adding gr-osmosdr from PPA, some 3.8.0 and 3.8.1 gnuradio libraries are installed beside 3.8.2 gnuradio libraries.
• I also found that removing 3.8.2 to install 3.8.1 (from ppa), there remains 3.8.2 libraries
  

In my case I solved the issue by unsinstalling all gr-xxx package, (re)install GR 3.8.2, remove all remaining 3.8.1 or 3.8.0 libgnuradio libraries (if 3.8.2 is installed), and then compile and install all gr-xxx from source codes

Regards

On 03/09/2020 16:43, Freddy Van Ingelgom wrote:

Hello everyone,

This is my first post in this list.

I used gnuradio for some time yet, but recently I saved a acer Travelmate from Win7 and installed Ubuntu 20.04. I Installed gnuradio 3.8. I installed also gr-iio, libiio and libad9361-iio.

When I try to run a flowchart with plutosdr source, I have the message "ModuleNotFoundError: No module named 'iio'"

I found several "solutions" on the net, but not one that worked for me.

Anyone else had this problem and solved it?

Thanks for your help!

Freddy, ON7VQ