OLEDE Error: Login failed for user 'DOMAIN\ComputerName$'.;28000

OLEDE Error: Login failed for user 'DOMAIN\ComputerName$'.;28000

I am trying to deploy an Analysis Services cube in SQL Server 2012. My
user account is REALM\Merin where REALM is the domain and my computer's
name is Hercules. I am already in Analysis Service's administrator group.
When I process the cube using SQL Server Data Tools, I get following
error.
OLE DB error: OLE DB or ODBC error. Login failed for user
'REALM\Hercules$'.; 28000.
My user account is REALM\Merin but I don't know why it is complaining
about user REALM\Hercules$. What does this account mean? A user with
ComputerName + $ is strange to me. Someone help please.
Thanks, Merin