Dear all, Can anybody familiar with gmsh tell me why firedrake protests when loading the attached mesh? How can it be corrected? Thank you, Tomasz Error listing: ... File "/home/tommy/work/programs/lin_coupled_3d/lib/coupled_system.py", line 23, in __init__ self.mesh = fd.Mesh("L_domain.msh") File "<decorator-gen-275>", line 2, in Mesh File "/home/tommy/programs/firedrake/local/lib/python2.7/site-packages/pyop2/profiling.py", line 203, in wrapper return f(*args, **kwargs) File "/home/tommy/programs/firedrake/local/lib/python2.7/site-packages/firedrake/mesh.py", line 1075, in Mesh plex = _from_gmsh(meshfile) File "/home/tommy/programs/firedrake/local/lib/python2.7/site-packages/firedrake/mesh.py", line 159, in _from_gmsh gmsh_plex = PETSc.DMPlex().createGmsh(gmsh_viewer) File "PETSc/DMPlex.pyx", line 109, in petsc4py.PETSc.DMPlex.createGmsh (src/petsc4py.PETSc.c:222051) petsc4py.PETSc.Error: error code 62 [0] DMPlexCreateGmsh() line 247 in /tmp/pip-5Zhs5M-build/src/dm/impls/plex/plexgmsh.c [0] Invalid argument [0] Could not determine Plex facet for element 913