I was trying to get my reporting service up but I got the below error when trying to visit http://localhost/reportserver:
The report server has encountered a configuration error. (rsServerConfigurationError)
1. Go to: Microsoft Sql Server 2008 > Configuration Tools > Reporting Services Configuration Manager
2. In Configure Web Service Url -> Click Apply
3. Report Manager Url -> Click Apply
4. In Database -> define the database server
5. Try to ensure the necessary permission is granted to C:\Program Files\Microsoft SQL Server\MSRS10.MSSQLSERVER\Reporting Services.
Retry and happy reporting!