[saeedr]

I have generated multi-block mesh in ICEM CFD.But when i generate mesh file for fluent, errors occurs as shown in the fig. Please help me.Thanks

[huey1080]

Once converted in unstructured mesh, use the check Mesh utility under the Mesh tab, it will show you the uncovered faces. But usually it means that in your blocking you have faces of a block that are not linked to a surface of the geometry.