Cube process error

[berdron1]

Hello,

I have created new cube on Analysis Services 2005 and receiving this error durning its procesing:

OLE DB error: OLE DB or ODBC error: Cannot create the clustered index "Agg_ILOC_39_66_65_73_73_0" on view "cube.dbo.Agg_ILOC_39_66_65_73_73_0" because the view references an unknown value (SUM aggregate of nullable expression). Consider referencing only non-nullable values in SUM. ISNULL() may be useful for this.; 42000.

I have also set these options on database:
ARITHABORT, CONCAT_NULL_YEILDS_NULL, QUOTED_IDENTIFIER, ANSI_NULLS, ANSI_PADDING, and ANSI_WARNING
but even this not help.

Can someone help what is wrong?

Thanks in advance for any help.

Jan