Build error about CosseratBindings

[SangbaekYoo]

Hello, currently I want to use standalone project for SOFA plugins, but always fail with below error screen during compling.

I download SOFA v23.06 binary and set CMAKE_PREFIX_PATH to SOFA directory.
I try to build this project since I want to obtain camera frame without GUI.
https://github.com/jnbrunet/SofaOffscreenCamera

This error is always shown for any standalone project, so I guess that there is mistake about setting cmake configuration or SOFA binary.

Can I solve this problem?

[hugtalbot]

Hi @SangbaekYoo

It seems that you aim at compiling the Cosserat plugin with the SOFA binary.
However, this Cosserat plugin is already distributed in the SOFA binaries: therefore no need to compile it.

Cheers

[SangbaekYoo]

Hi @hugtalbot. Thank you for reply my question.

My purpose is to build this repository.
https://github.com/jnbrunet/SofaOffscreenCamera.git

But when I set with default config setting and build, there is error as follows:

Make Error at /home/control03/SOFA/SOFA_v23.06.00_Linux/plugins/SofaPython3/lib/cmake/SofaPython3/BindingsTargets.cmake:98 (message):
  The imported target "SofaPython3::CosseratBindings" references the file

     "/home/control03/SOFA/SOFA_v23.06.00_Linux/plugins/SofaPython3/lib/python3/site-packages/CosseratPlugin.cpython-38-x86_64-linux-gnu.so"

  but this file does not exist.  Possible reasons include:

  * The file was deleted, renamed, or moved to another location.

  * An install or uninstall procedure did not complete successfully.

  * The installation package was faulty and contained

     "/home/control03/SOFA/SOFA_v23.06.00_Linux/plugins/SofaPython3/lib/cmake/SofaPython3/BindingsTargets.cmake"

  but not all the files it references.

Call Stack (most recent call first):
  /home/control03/SOFA/SOFA_v23.06.00_Linux/plugins/SofaPython3/lib/cmake/SofaPython3/BindingsConfig.cmake:48 (include)
  /home/control03/SOFA/SOFA_v23.06.00_Linux/plugins/SofaPython3/lib/cmake/SofaPython3/SofaPython3Config.cmake:86 (include)
  CMakeLists.txt:53 (find_package)

I thought that there is Cosserat plugin setting problem.
In addition, when I build another repository that need Sofa, this error is always appeared.

[fredroy]

Hello @SangbaekYoo,

it seems there are some error/bugs in the cmake configuration of the Cosserat's python3 bindings, as it is referencing the weird location for the python bindings. It should be /home/control03/SOFA/SOFA_v23.06.00_Linux/plugins/CosseratPlugin/lib/python3/site-packages/CosseratPlugin.cpython-38-x86_64-linux-gnu.so instead. It does not make sense that SofaPython3 files contains any references to CosseratPlugin IMO.

Therefore, some CMake packaging file needs to be fixed.
In the meanwhile, could you try to edit the file SOFA_v23.06.00_Linux/plugins/SofaPython3/lib/cmake/SofaPython3/BindingsTargets.cmake and remove the lines 72 to 78 (which references CosseratPlugin) ?

[fredroy]

@hugtalbot the error in this discussion should be fixed by SofaDefrost/Cosserat#87
It should be backported for v23.06

[hugtalbot]

@fredroy do you mean to rebuild a new release?

[fredroy]

Yes (or maybe in a 23.06.1 release ?)
In the present release, the generated SofaPython3/BindingsTargets.cmake is bogus; if one (external) project references SofaPython3::Bindings (for example to make new bindings?), cmake will throw an error, like in this discussion.