title: Trying to process the cube but getting the error at impersonation information
body: <p>I have built a cube in Business Development Intelligent Studio(BIDS) using some database with the name 'Test_cube' which consists of Products dimension table, customers dimension table and orders fact table.<br>
  The products table attributes :prodID-primary key,prodname,prodtype,prodcost<br>
  The customers table attributes :custID-primary key,custname,custloc<br>
  The orders table attributes :orderID,prodID,custID,quantity,unitprice,totalprice-calculated query column where primary key was set to orderID,prodID,custID</p>
  
  <p>But I got some errors while trying to deploy the cube like</p>
  
  <p><strong>Internal error : The operation terminated unsuccessfully.<br>
  The datasource,'Test_cube', contains an ImpersonationMode that is not supported for processing operations.<br>
  Errors in the high-level relational engine.A connection could not be made to the datasource with the DataSourceID of 'Test_cube',Name of 'Test_cube'.<br>
  Errors in the OLAP Storage engine: An error occurred while the dimension, with the ID of 'products',Name of the 'products' was being processed.<br>
  Errors in the OLAP storage engine: An error occurred while the 'prodID' attribute of the 'products' dimension from the 'Test_cube' database was being processed.<br>
  Server : The Current operation was cancelled because another operation in the transaction failed.</strong></p>