[Gmsh] Error for centerline mesh

[Nasrollah Hajaliakbari]

Hello,
I was working on an example of gmsh wiki which is referred to the example 2 of this page "​https://geuz.org/trac/gmsh/wiki/FSIMesh". At first, I could do the same mesh with related commands of its centerline file(centerlinesANEU.vtk)without changing any command and I closed the gmsh, but for the second time when I use the same command for doing the same mesh, It did not work well and I got an error.I was wondering if you can help me fix it.Yours trulyNasrollah Hajaliakbari
 
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