Oracle Message ORA-16100 - not a valid Logical Standby database

ERRORnot a valid Logical Standby database
CAUSEThis database has not been completely configured as a Logical Standby database.
ACTIONVerify that the database is the intended Logical Standby database. Ensure that you already started logical standby apply with the ALTER DATABASE START LOGICAL APPLY INITIAL statement. See the Oracle8i SQL Reference manual for the statement syntax.