Fluent.msh to XDMF; error

Oh, it seems in the newer versions of meshio it is sufficient to state

import meshio
msh = meshio.read(“fluentbin.msh”, file_format = “ansys”)

And try to check your output mesh is the same as your input mesh, i.e. check the number of elements in your .msh file and your .xdmf, because it might be the case that the meshio-convert might not write the mesh correctly. You may refer to this link for instructions on how to write meshes readable by dolfin.