Error in SSAS 2012 : No mapping between account names and security IDs was done

Hi All,

While trying to add the one of the user [DOMAIN\USERNAME] in "Role" of the OLAP databases's cube (in SQL Server Analysis Server 2012) it did not allow to add the user to access the cube. It gave below error:

"The following system error occurred:  No mapping between account names and security IDs was done"

Actually, similar username was existing so even while deleting that one and adding this user also it is giving the same error.

Any idea what needs to be corrected to add the user in this cube's role ?

Thanks