Hello, need help when i am deploying a dimension in ssas i m getting error

Question

Error 3
OLE DB error: OLE DB or ODBC error: Login failed for user 'NT Service\MSOLAP$MEENA'.; 28000.
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Error 4
Errors in the high-level relational engine. A connection could not be made to the data source with the DataSourceID of 'Adventure Works DW2012', Name of 'Adventure Works DW2012'.
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Error 5
   Errors in the OLAP storage engine: An error occurred while the dimension, with the ID of 'Dim Product', Name of '                             Dim Product' was being processed.
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 Error 6
Errors in the OLAP storage engine: An error occurred while the 'English Product Name' attribute of the 'Dim Product' dimension from the 'MultidimensionalProject10' database was being processed.
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thank u 
pavithra123

Answer 1

Hi Pavithra123,
As Saurabh said, the issue is related to user 'NT Service\MSOLAP$MEENA' is not able to access 'Adventure Works DW2012' database.
By default, the default account for AS services has only public permission to few databases. If you haven't change the AS services account, or haven't grant the permission for this account, then you cannot deploy the AS project to server.
So in your scenario, to avoid this issue, you can grant the SELECT permission for the default account for AS services to data source DB (Adventure Works DW2012). Or you can change the services account to this domain user who has the corresponding to the
data source DB.
Hope this helps.
Regards,
Charlie Liao
Charlie Liao
TechNet Community Support