Update : Debugging the warning was pretty straightforward. The extension .so was missing in the <footbot_diffusion_controller ..> tag

Hi Carlo, I had followed those instructions the first time itself. Nevertheless I did it again, multiple times, and I encountered the same error. I noticed that there was a directory argos2 in usr/lib/ but no argos3. So I created a directory named argos3 and copied libargos3core_simulator.so into it...

Error message "argos3: error while loading shared libraries: libargos3core_simulator.so: cannot open shared object file: No such file or directory"

I looked for the file and it is present in build_simulator/core. Why is argos3 not able to find it?

Please help,
Thank you.