[SOLVED] Errors while building SofaPython3 (Windows)

[Julien D.]

Hello everyone,

I am trying to migrate my python scenes from Sofa v20.12 to Sofa v21.06, still on Windows 10.

To do so, I have cloned the source code of Sofa v21.06 on my PC, and I have configured it on CMake, ticking successively “SofaFetch-sofaPython3” and “PLUGIN_SofaPython3”.

First of all, I have errors because lib files are missing, as described in the forum post https://www.sofa-framework.org/community/forum/topic/missing-lib-files/#post-20760 .
Therefore, the binaries of sofa 21.06 must be downloaded from sofa website, and the missing libs copied into the sofa/build/lib directories of your project. The same goes for the dynamic libraries (dll) files to be able to run Sofa.

If you want to build Sofa 21.06 on windows doing so, everything works fine, the only unconvenience being to copy the missing files manually. But it works.

However, with SofaPython3, when I try to compile this plugin in tree (on Visual Studio 2019), I have the following errors :

– first ones : C2XXX

Erreur C2011 'pybind11::attribute_error' : redéfinition du type 'class' Plugin D:\Utilisateurs\jducrocq\Documents\Librairies\sofa\src\applications\plugins\SofaPython3\Plugin\src\SofaPython3\PythonFactory.cpp

– second ones : LNK 2019

Erreur LNK2019 symbole externe non résolu "__declspec(dllimport) public: __cdecl sofapython3::PythonTestData::~PythonTestData(void)" (__imp_??1PythonTestData@sofapython3@@QEAA@XZ) référencé dans la fonction "public: virtual void __cdecl testing::internal::ValuesInIteratorRangeGenerator<struct sofapython3::PythonTestData>::Iterator::Advance(void)" (?Advance@Iterator@?$ValuesInIteratorRangeGenerator@UPythonTestData@sofapython3@@@internal@testing@@UEAAXXZ) Bindings.Modules.Tests D:\Utilisateurs\jducrocq\Documents\Librairies\sofa\build\applications\plugins\SofaPython3\bindings\Modules\tests\main.obj

I don’t know at all how to solve these kind of errors, so if anyone could help me I’d be very glad !

Have a good start of week everyone,

Best wishes,

Julien D

[Froy]

Hello,

This problem is due to an update of pybind (I am expecting you to have a recent version of pybind, i.e > 2.8).
This is fixed in this PR https://github.com/sofa-framework/SofaPython3/pull/216
You can also fix it by downgrading your own version of pybind.

Fred

[Julien D.]

Hello @Froy,

ok, thank you, I’ll try that very soon (not today but soonie) and I’ll keep this forum in touch 🙂

Thank you very much for your help !

Julien

[Julien D.]

Hey everyone,

Installing pybind11 version 2.8.0 instead of 2.8.0 works, I could install succesfully sofaPython3 in tree with Sofa version 21.06. Everything is working !

Thank you very much again @Froy 🙂

For me, this topic is resolved uwu.

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