Silvio Traversaro

> I was getting build errors for libxml2-devel version 2.13 and stdlib('c') couldn't be resolved. For example: The `stdlib('c')` not being resolved means that probably you were not passing correctly...

For some reason, a really old `ipopt 3.11.1 2 conda-forge` is now installed on Windows.

@conda-forge/mumps I guess you may be interested in reviewing this PR.

@conda-forge/mumps I guess you may be interested in reviewing this PR.

The CI failure is not related to this PR, it is an upstream vcpkg issue tracked in https://github.com/microsoft/vcpkg/issues/47599 that will be fixed by https://github.com/microsoft/vcpkg/pull/47620 .

Which version of iDynTree are you using? I guess this was a regression of https://github.com/robotology/idyntree/pull/1255/https://github.com/robotology/idyntree/pull/1257 . If using directly the Python list fixes your problem feel free to open a...

So it does not include https://github.com/robotology/idyntree/pull/1255, so my assumption was wrong. Anyhow, feel free to open a PR to fix the issue, it does not make sense to couple this...

The master branch is a bit in a flux with a lot of changes for spherical joint support, so I prefer to wait for that to be finished (and bump...

Good investigation! To provide more context, the `_1` build was built from https://github.com/conda-forge/idyntree-feedstock/commit/d7f0fc073bd4f1d51c10b7eaa62215e65d2b3ce5 (see https://conda-metadata-app.streamlit.app/?q=conda-forge%2Flinux-64%2Fidyntree-13.4.2-py39h5b8d606_1.conda) while _0 from https://github.com/conda-forge/idyntree-feedstock/commit/95d61beedfe2cbe706dcc720145e3bbf84a59158 (see https://conda-metadata-app.streamlit.app/?q=conda-forge%2Flinux-64%2Fidyntree-13.4.2-py39h89e2db9_0.conda), so the diff is https://github.com/conda-forge/idyntree-feedstock/compare/95d61beedfe2cbe706dcc720145e3bbf84a59158...d7f0fc073bd4f1d51c10b7eaa62215e65d2b3ce5 .

Anyhow, I think the "Error when calling MeshcatVisualizer.load_model_from_file() function" issue is fixed by the fix you propose, so let's fix it. The "StringVector overload are not working anymore with gcc...