SAP Message RSCV156 - ROOTSID & is missing in inclusion table of hierarchy & version &

Diagnosis
The hierarchy root node (ROOTSID) is not contained in the inclusiontable.

System Response
The hierarchy data for the OLAP processor is incorrect and cannot beused.

Procedure
The SID is entered for the root node ROOTSID in table RSRHIEDIR_OLAP.This entry must be available in the inclusion table.
Start the repair in the initial screen or the program'RRINCLTAB_REBUILD'.