Raw mesh is corrupt for

Hi everyone again : p

Ive decide to create new topic, couse there is no information about this kind of error, like serious…

“LogMeshUtilities: Error: Raw mesh is corrupt for LOD1.”
“LogStaticMesh: Error: Failed to build static mesh. See previous line(s) for details.”

Ofcourse, its showing while i try to packing my project.
Can anyone told me what this error means? I dont have any LOD1 Object…