Installing SQL Reporting Services to exisiting SQL 2008 R2 Instance?

Hello all,

I have only one Server with SQL 2008 R2 that I use for my SCCM 2012, the SQL server is not clustered.

I want to use the reporting feature in my SCCM 2012 but that requires SRSS, when I tried to add the Reporting Services feature to my existing SQL server instance it gives me this error "the instance name is already in use" so I can't continue install this feature!!

So can I install this feature on existing SQL 2008 R2 sever?

thanks for the help

Regards,