[Gmsh] Fatal ERROR : mulptiple times in Surface mesh

[Andre-Frederic SAROLI]

After making a geometry, I mesh it in 1D and 2D without problem.
But when the 3D meshing process runs GMSH makes a fatal error.
This message appears : fatal ERROR : multiple times in surface mesh, and
I don't understand what does it mean.
Could you explain me what sort of error it is?

Thank you for the answer.
Sincerely yours  




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Andre-Frederic SAROLI

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