Found missing edge

Coreform Cubit Meshing
#1

I am getting the following error. Can you please give some clue on how to fix this:

Trelis>mesh Volume 27
Meshing Volume 27 (Volume 27)
Generated 14 tris for Surface 69 (Surface 69).
TetMeshGems mesher found!
WARNING: (1008460): WARNING 8460 %% OPTIMIZATION AND RESTART AGAIN
WARNING: (1008460): WARNING 8460 %% OPTIMIZATION AND RESTART AGAIN
WARNING: (1008460): WARNING 8460 %% OPTIMIZATION AND RESTART AGAIN
ERROR:
Found missing edge (2): 538 840
ERROR:
Found missing edge (2): 1984 2079
ERROR:
Found missing edge (2): 2116 2117
ERROR:
Found missing edge (2): 1984 1988
ERROR:
(-1008422): NUMBER OF MISSING FACES 4
ERROR:
Found missing face: 538 724 840
ERROR:
Found missing face: 1984 1986 1988
ERROR:
Found missing face: 2115 2116 2117
ERROR:
Found missing face: 1984 2079 2708
ERROR:
(-1008480): ERR 8480
ERROR:
Unable to generate empty mesh
ERROR:
Volume 27 (Volume 27) meshing unsuccessful.

#2

This error is coming from the MeshGems tetmesher. Looking at your model, it appears that you have a lot of non-manifold geometry, which often has issues when meshing. One solution you could try is to decompose the model via webcuts to create multiple (manifold) volumes, imprint/merge, then try to mesh.

#3

Is there a way to get the coordinates or location information of the problem area? For example, in the message “Found missing face: 538 724 840,” where is this face located in the volume? What are the three numbers?
I used webcut to separate the vol into 2 volumes. I am able to mesh one of the two volumes. But the other one is giving the same error

Meshing Volume 30 (Volume 30)
TetMeshGems mesher found!
WARNING: (1008460): WARNING 8460 %% OPTIMIZATION AND RESTART AGAIN
WARNING: (1008460): WARNING 8460 %% OPTIMIZATION AND RESTART AGAIN
WARNING: (1008460): WARNING 8460 %% OPTIMIZATION AND RESTART AGAIN
ERROR:
Found missing edge (2): 485 488
ERROR:
(-1008422): NUMBER OF MISSING FACES 1
ERROR:
Found missing face: 485 486 488
ERROR:
(-1008480): ERR 8480