Hi,

When I run SSAS locally on my laptop I usually use my own windows login account as the service account for SSAS and my local SQL Server RDBMS.

This will also make sure that if you have an external SQL Server data source and you have read permissions on that source, it is possible to build SSAS cubes on your local computer. I usually do this for test and prototypes.

You can change this in the configurations tool, SQL Server Configuration manager.

I think this will solve u problem.

regards
Vishal