When I load the Skyrim.esm I get a series of error messages, and cant find any FAQ that explains it.
First there is a

MASTERFILE: NavmeshInfo 00028e27 has no parent space, Ignoring.

Witch is followed by a series of messages like this

MASTERFILE: Errors were encountered during InitItem for Reference:
Base: 'AutoLoadDoor01' (00031897)
Ref: “ (00015E1D)
Cell: 'YngolBarrowExterior' (0000B452) (38, 11) in world 'Tamriel' (0000003C)

Do anyone have an idea why?