The ARGoS Forum

Posted: **Fri Jan 07, 2022 2:36 pm**

When I try to run the command:

argos3 -c src/examples/experiments/kilobot_blinky.argos

The following errors appear:

[FATAL] Failed to initialize the space.
[FATAL] Symbol "kilobot" not found.

Posted: **Fri Jan 07, 2022 2:40 pm**

You need to install the kilobot plugin with make install.

Posted: **Fri Jan 07, 2022 3:53 pm**

I downloaded the folder from: https://github.com/ilpincy/argos3-kilobot
And I ran the following commands:

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mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ../src
make
sudo make install

Posted: **Fri Jan 07, 2022 4:23 pm**

Maybe your installation is not correct. What's the output of the following commands:

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which argos3
ls /usr/local/lib/argos3
ls /usr/local/bin/argos3
ls /usr/lib/argos3
ls /usr/bin/argos3

Posted: **Fri Jan 07, 2022 4:50 pm**

Code: Select all

antonio@antonio-Lenovo-V110-15AST:~/Downloads/argos3-kilobot-master$ which argos3
/usr/bin/argos3
antonio@antonio-Lenovo-V110-15AST:~/Downloads/argos3-kilobot-master$ ls /usr/local/lib/argos3
libargos3plugin_simulator_kilobot.so  libargos3plugin_simulator_kilolib.a
antonio@antonio-Lenovo-V110-15AST:~/Downloads/argos3-kilobot-master$ ls /usr/local/bin/argos3
ls: cannot access '/usr/local/bin/argos3': No such file or directory
antonio@antonio-Lenovo-V110-15AST:~/Downloads/argos3-kilobot-master$ ls /usr/lib/argos3
libargos3core_simulator.so               libargos3plugin_simulator_eyebot.so        libargos3plugin_simulator_prototype.so
libargos3plugin_simulator_dynamics2d.so  libargos3plugin_simulator_footbot.so       libargos3plugin_simulator_qtopengl.so
libargos3plugin_simulator_dynamics3d.so  libargos3plugin_simulator_genericrobot.so  libargos3plugin_simulator_spiri.so
libargos3plugin_simulator_entities.so    libargos3plugin_simulator_media.so
libargos3plugin_simulator_epuck.so       libargos3plugin_simulator_pointmass3d.so
antonio@antonio-Lenovo-V110-15AST:~/Downloads/argos3-kilobot-master$ ls /usr/bin/argos3
/usr/bin/argos3
antonio@antonio-Lenovo-V110-15AST:~/Downloads/argos3-kilobot-master$

Posted: **Fri Jan 07, 2022 4:53 pm**

OK so the problem is due to the fact that ARGoS is installed in /usr/lib/argos3, but the kilobot plugin is installed in /usr/local/lib/argos3.

Two possible solutions:

Code: Select all

sudo mv /usr/local/lib/argos3 /usr/lib

or

Code: Select all

rm -rf /usr/local/lib/argos3
cd argos3-kilobot
rm -rf build
mkdir build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr ../src
make
sudo make install

Posted: **Fri Jan 07, 2022 5:23 pm**

Code: Select all

antonio@antonio-Lenovo-V110-15AST:~/Downloads/argos3-kilobot-master$ sudo mv /usr/local/lib/argos3 /usr/lib
[sudo] password for antonio: 
mv: cannot move '/usr/local/lib/argos3' to '/usr/lib/argos3': Directory not empty
antonio@antonio-Lenovo-V110-15AST:~/Downloads/argos3-kilobot-master$ rm -rf /usr/local/lib/argos3
rm: cannot remove '/usr/local/lib/argos3/libargos3plugin_simulator_kilolib.a': Permission denied
rm: cannot remove '/usr/local/lib/argos3/libargos3plugin_simulator_kilobot.so': Permission denied
antonio@antonio-Lenovo-V110-15AST:~/Downloads/argos3-kilobot-master$

Posted: **Fri Jan 07, 2022 5:35 pm**

Well, then copy the files over and remove them...

I hope the point is clear: the files are in the wrong place.

Posted: **Fri Jan 07, 2022 6:30 pm**

I logged in as root and ran the commands you wrote me. Now everything works. Thanks so much.

The ARGoS Forum

Symbol "kilobot" not found

Symbol "kilobot" not found

Re: Symbol "kilobot" not found

Re: Symbol "kilobot" not found

Re: Symbol "kilobot" not found

Re: Symbol "kilobot" not found

Re: Symbol "kilobot" not found

Re: Symbol "kilobot" not found

Re: Symbol "kilobot" not found

Re: Symbol "kilobot" not found