The ARGoS Forum

Posted: **Wed Jan 05, 2022 9:07 pm**

Hi,

I synced to beta59, uninstall old branch and followed the instructions from README file.
when i run
argos3/build_simulator/core$ ./argos3 -q all
I get the following error:

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[quote][b][INFO] Loaded library "/home/ubuntu/orig_argos/argos3/build_simulator/core/libargos3core_simulator.so"
[INFO] Loaded library "/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/visualizations/qt-opengl/libargos3plugin_simulator_qtopengl.so"
[INFO] Loaded library "/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics2d/libargos3plugin_simulator_dynamics2d.so"
[INFO] Loaded library "/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d/libargos3plugin_simulator_dynamics3d_magnetism.so"
[INFO] Loaded library "/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d/libargos3plugin_simulator_dynamics3d_floor.so"
[INFO] Loaded library "/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d/libargos3plugin_simulator_dynamics3d_gravity.so"
[FATAL] Can't load library "/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d/libargos3plugin_simulator_dynamics3d_srocs.so" after trying the following: 

  /home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d/libargos3plugin_simulator_dynamics3d_srocs.so: /home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/block/libargos3plugin_simulator_block.so: undefined symbol: _ZTIN5argos18CSimpleRadioMediumE

  /home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d/libargos3plugin_simulator_dynamics3d_srocs.so.so: /home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d/libargos3plugin_simulator_dynamics3d_srocs.so.so: cannot open shared object file: No such file or directory

  /home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d/libargos3plugin_simulator_dynamics3d_srocs.so.so: /home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d/libargos3plugin_simulator_dynamics3d_srocs.so.so: cannot open shared object file: No such file or directory[/b][/quote]

any idea what i did wrong ?

thank you!

Posted: **Wed Jan 05, 2022 9:12 pm**

Somehow you're linking ARGoS in the build directory, which is not a correct procedure. Just install ARGoS system-wide. Is there a reason why you're not using the packages?

Posted: **Wed Jan 05, 2022 10:37 pm**

Thank you for your reply.

I just followed the instructions from README:

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$ git clone https://github.com/ilpincy/argos3.git argos3
$ cd argos3
$ mkdir build_simulator
$ cd build_simulator
$ cmake ../src
$ make
$ make doc
$ . setup_env.sh     # or 'source setup_env.sh'
$ cd core
$ ./argos3 -q all    # this shows

all the plugins recognized by ARGoS

Posted: **Wed Jan 05, 2022 10:48 pm**

OK, I'll update the README to remove that procedure altogether

It's meant for me, normal users should install ARGoS system-wide.

Why are you compiling ARGoS from the sources, if your OS is Ubuntu? Why not using the packages?

If your intention is to add a new module to ARGoS, doing it by modifying the code in this repository is the wrong approach.

Anyway, the correct procedure is as follows:

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cd argos3
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make
make doc
sudo make install

Make sure no other version of ARGoS is installed anywhere.

Posted: **Wed Jan 05, 2022 11:24 pm**

Thank you for your answer.

I didn't use the package because it didn't work for me.
I deleted the source tree and uninstalled everything, and then install the package

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$sudo apt install ./argos3_simulator-3.0.0-x86_64-beta59.deb

Now, I downloaded the examples and run

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$ mkdir build
$ cd build
$ cmake -DCMAKE_MODULE_PATH=/usr/share/argos3/cmake/ -DCMAKE_BUILD_TYPE=Release ..

where /usr/share/argos3/cmake/ has ARGoSConfig and ARGoSSettings

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$ ls /usr/share/argos3/cmake/
ARGoSConfig.cmake    FindARGoSQTOpenGL.cmake  FindFreeImage.cmake        FindPthreads.cmake
ARGoSSettings.cmake  FindDLFCN.cmake          FindGooglePerfTools.cmake

and I'm getting the following error

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-- Found ARGoS: /usr/local/lib/argos3/libargos3core_simulator.so
CMake Error at /usr/share/argos3/cmake/ARGoSConfig.cmake:109 (include):
  include could not find load file:

    ARGoSSettings
Call Stack (most recent call first):
  CMakeLists.txt:22 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/ubuntu/argos3-examples/CMakeFiles/CMakeOutput.log".

I also update ARGOS_PLUGIN_PATH

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$ export ARGOS_PLUGIN_PATH=/home/ubuntu/argos3-examples/build

what an I missing ?

Thank you!!

Posted: **Thu Jan 06, 2022 1:17 am**

The output you show reports that you still have another version of ARGoS installed in the system, and that confuses CMake.

Let's first make sure that ARGoS is completely cleared. This will wipe your previous attempts at installing ARGoS manually, which usually end up in /usr/local. The output you showed reports that some files are still there.

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sudo rm -rf /usr/local/bin/argos3
sudo rm -rf /usr/local/doc/argos3
sudo rm -rf /usr/local/include/argos3
sudo rm -rf /usr/local/lib/argos3
sudo rm -rf /usr/local/libexec/argos3
sudo rm -rf /usr/local/share/man/man1/argos3.1.gz
sudo rm -rf /usr/local/share/argos3
sudo rm -rf /etc/ld.so.conf.d/argos3.conf

Then delete and reinstall the package:

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sudo apt rm argos3_simulator
sudo apt install ./argos3_simulator-3.0.0-x86_64-beta59.deb

Test that the installation went OK using this command:

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argos3 -q all

You should see that all the libraries that are linked (written in green) are located in /usr/lib, and nowhere else. If you see extra stuff, something is wrong (please write back in that case).

Now it's time to compile the examples:

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cd argos3-examples
rm -rf build
mkdir build
cmake ../src
make

And let's test them:

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cd argos3-examples
argos3 -c experiments/diffusion_10.argos

Posted: **Thu Jan 06, 2022 7:38 am**

Thank you very much for the detailed answer!

I deleted everything before the output I sent earlier. Did it again now, and this is the output of argos3 -q all:

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$ argos3 -q all
ARGOS_PLUGIN_PATH problem
terminate called after throwing an instance of 'char const*'
Aborted (core dumped)

where ARGOS_PLUGIN_PATH is

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$ echo ${ARGOS_PLUGIN_PATH}
/home/ubuntu/orig_argos/argos3/build_simulator/core:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/visualizations/qt-opengl:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics2d:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/dynamics3d:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/physics_engines/pointmass3d:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/media:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/simulator/entities:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/generic:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/builderbot:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/drone:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/foot-bot:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/eye-bot:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/e-puck:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/pi-puck:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/spiri:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/prototype:/home/ubuntu/orig_argos/argos3/build_simulator/plugins/robots/block

I removed all paths from ARGOS_PLUGIN_PATH but I get the same result

Thank you very much for your help!!

Posted: **Thu Jan 06, 2022 7:43 am**

ARGOS_PLUGIN_PATH should not contain anything at all, how did you set that value? What commands do you run to do it?

Make sure that you try this:

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unset ARGOS_PLUGIN_PATH
argos3 -q all

and that nowhere in your .bashrc, .profile you have commands to set that variable.

Posted: **Thu Jan 06, 2022 7:54 am**

ok, thanks!

Now this is the output I get - is it expected ?

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$ argos3 -q all
[WARNING] Error opening directory "/usr/local/lib/argos3/": No such file or directory
AVAILABLE ACTUATORS

AVAILABLE SENSORS

AVAILABLE PHYSICS ENGINES

AVAILABLE MEDIA

AVAILABLE VISUALIZATIONS

AVAILABLE ENTITIES

   [ floor ]
      It contains the properties of the arena floor.

Posted: **Thu Jan 06, 2022 7:58 am**

Anyway, I'm getting the same results when compiling the examples:

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~/argos3-examples/build$ cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_MODULE_PATH=/usr/share/argos3/cmake/ ..
-- Found ARGoS: /usr/local/lib/argos3/libargos3core_simulator.so
CMake Error at /usr/share/argos3/cmake/ARGoSConfig.cmake:109 (include):
  include could not find load file:

    ARGoSSettings
Call Stack (most recent call first):
  CMakeLists.txt:22 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/ubuntu/argos3-examples/CMakeFiles/CMakeOutput.log".

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