Reporting server installation error:  ERROR Fail to connect Reporting Services namespace:root\microsoft\sqlserver\reportserver\

Version 1

    Details

    The wizard detects an instance that actually doesn’t exist and that makes the installation fail.
      

    2016-12-16 18:01:48,061 [1] INFO List SSRS Instance from registry. Path:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\Instance Names\RS

    Result:[MSSQLSERVER, MSRS12.MSSQLSERVER];[HEATUAT, MSRS12.HEATUAT]
     
     

    2016-12-16 18:01:48,273 [1] INFO Load Selected Instance from local DB table ReportingStates. CurrentInstance:MSSQLSERVER2

    2016-12-16 18:01:48,280 [1] INFO Instantiated ReportingServer object. instanceName:MSSQLSERVER2

    2016-12-16 18:01:48,322 [1] ERROR Fail to connect Reporting Services namespace:root\microsoft\sqlserver\reportserver\rs_MSSQLSERVER2\v10\admin

    System.Management.ManagementException: Invalid namespace
     


    Resolution

    Renamed the file FRSConfig.sdf,  therefore all old wrong references in the wizard were cancelled and able to properly configure reporting services.