Creating .msh files

Hi.
I’ve been trying to create a scene with VTKExporter and MeshVTKLoader, but when I finish and run it, I get a segmentation fault.

########## SIG 11 - SIGSEGV: segfault ##########
8: sofa::helper::BackTrace::dump - 0x7ff8f5b838c0
7: sofa::helper::BackTrace::sig - 0x7ff8f5b83a50
6: XcptFilter - 0x7ff93c1ffaf0
5: XcptFilter - 0x7ff93c1ffaf0
4: _C_specific_handler - 0x7ff93c1ff238
3: _chkstk - 0x7ff948db9f60
2: RtlLookupFunctionEntry - 0x7ff948d291a0
1: KiUserExceptionDispatcher - 0x7ff948db90d0
0: KiUserExceptionDispatcher - 0x7ff948db90d0
[WARNING] [SofaSimulationTree] the library has not been cleaned up (sofa::simulation::tree::cleanup() has never been called, see sofa/helper/init.h)
[WARNING] [SofaSimulationGraph] the library has not been cleaned up (sofa::simulation::graph::cleanup() has never been called, see sofa/helper/init.h)
[WARNING] [SofaSimulationCommon] the library has not been cleaned up (sofa::simulation::common::cleanup() has never been called, see sofa/helper/init.h)
[WARNING] [SofaSimulationCore] the library has not been cleaned up (sofa::simulation::core::cleanup() has never been called, see sofa/helper/init.h)
[WARNING] [SofaCore] the library has not been cleaned up (sofa::core::cleanup() has never been called, see sofa/helper/init.h)
[WARNING] [SofaDefaultType] the library has not been cleaned up (sofa::defaulttype::cleanup() has never been called, see sofa/helper/init.h)

I’d like to know how to solve it.

Otherwise, what are you using to create .msh files?
I haven’t found a good app to do it.

I saw your MeshGmshLoader example but, as I said, I haven’t found a good app to create .msh file.

Thanks for your help.

Regards.